Sunday
December 4, 2016

Search: A simple pendulum of length L is released from the horizontal position. When the mass is at its lowest point, the string hits a nail a distance h above the mass, so that the mass loops around the na

Number of results: 100,960

st stevens college baja
A light inextensible string passes over a smooth light pulley and masses of 3 and 7 kg are attached to its ends.the masses are released from rest when 7kg mass is 1m above a horizontal table. 1) show that 7kg mass hits the table about 5/9 seconds if released.
September 1, 2015 by matovu Emma

physics
A student throws a 9 gram of gum is thrown across the physics lab from a distance of 2.5 m. When the gum has a horizontal velocity of vo it connects with a mass on the end of 1.62 kg simple pendulum which is initially at rest. The pendulum has a length of L of 0.74 m. The gum ...
April 12, 2010 by Jacob

Physics
A mass m1 on a horizontal shelf is attached by a thin string that passes over a frictionless pulley to a 2.5 kg mass (m2) that hangs over the side of the shelf 1.2 m above the ground. The system is released from rest at t = 0 and the 2.5 kg mass strikes the ground at t = 0.82 ...
February 26, 2012 by J

Physics
A student performs a ballistic pendulum experiment using an apparatus similar to that shown in the figure. Initially the bullet is fired at the block while the block is at rest (at its lowest swing point). After the bullet hits the block, the block rises to its highest ...
February 20, 2014 by Karen

Physics
A small lead ball of mass 2kg is suspended at the end of a light string 1m in length. A small peg, 0.5m below the suspension point, catches the string in its swing. The ball is set swinging through small angles. A) What is the period of the pendulum? B) The ball has started ...
October 3, 2013 by Yovani

Physics
Two pendulums are set up side by side. One pendulum P, consists of a 0.240 kg mass that is suspended on a string that is 65.0 cm long. The other pendulum, Q, has a 0.360 kg mass that is suspended on a string that is 39.0 cm long. The two masses are pulled aside slightly and ...
January 31, 2013 by Steve

Physics 12
"A pendulum consisting of an object of mass 1.3kg suspended from a string of length 1.9m is pulled aside so that the string makes an angle of 28 degrees with the vertical. At the instant the pendulum is released, what is the magnitude of the unbalanced force on the object?" I ...
November 17, 2008 by solexgirl12

Physics
A mass m is attached to a weightless string of length L, cross section S, and tensile strength ( the maximum tension it can withstand ) T . The mass is suddenly released from a point near the fixed end of the string. What condition should be on the value of Young's modulus Y ...
May 20, 2013 by Rafi Tanzim

Phyiscs help 3
The height of a tower is measured by attaching a simple pendulum to its ceiling, whose length is barely enough to stay off the floor. The pendulum is let go from a small angle, and takes 13 s to return to the same location it started from. a.) How tall is the tower? ? m If the...
November 9, 2008 by kelsey

physics
A 3.6 -kg mass attached to the end of a string swings in a vertical circle (radius = 17.9 m). When the string is horizontal, the speed of the mass is 3.8 m/s. What is the magnitude of the force of the string on the mass at this position?
April 17, 2015 by alaa

mechanics: simple harmonic oscillation
Consider an ideal spring that has an unstretched length ℓ and a spring constant k. Suppose the spring is attached to a mass m that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x_0 from equilibrium and then released with an...
September 3, 2015 by student1618

science
the string of pendulum is 2.0 m long,the bosy is pulled sideway so that the string becomes horizontal and the bob is released what is the speed with which the bob is released ?what is the speed with which the bob arrives the lowest piont?
September 10, 2014 by zahida

AP PHYSICS MECH.
A simple pendulum, consists of an object suspended by a string. The object is assumed to be a particle. The string, with its top end fixed, has negligible mass and does not stretch. In the absence of air friction, the system oscillates by swinging back and forth in a vertical ...
January 6, 2011 by vm

physics
A sphere of mass M is supported by a string that passes over a pulley at the end of a horizontal rod of length L. The string makes an angle è with the rod. The fundamental frequency of the standing waves in the portion of the string above the rod is f. Find the mass of the ...
April 18, 2011 by Anonymous

physics- mechanics
A light, rigid rod with two masses attached to its ends, one of mass 3M and one of mass M, is pivoted about a horizontal axis. The mass 3M is length L from the pivot point and the mass M is length 2L from the pivot point. When released from a horizontal orientation, the rod ...
February 18, 2013 by Anonymous

physics(help!!!!!!!!!!!)
A small ball of mass m=0.60 kg hangs from a massless string of length l=0.9 m. The ball travels in a vertical circle and its speed at the bottom is v0=6.0 m/s (see figure). Neglect all friction and air drag, and use g=10m/s^2 for the gravitational acceleration. The ball is so ...
November 2, 2013 by Anonymous

physics
A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the bottom of its path it is moving at a speed v = 2.3 m/s and the tension in the rope is T = 22.4 N. 1. What is the mass? 2. If the maximum mass that can ...
September 28, 2012 by hater of physics

physics
A simple pendulum consists of a light string 1.70 m long with a small 0.490 kg mass attached. The pendulum starts out at 45^\circ below the horizontal and is given an initial downward speed of 1.50 m/s. At the bottom of the arc, determine the centripetal acceleration of the ...
June 25, 2011 by Luis

physics
A simple pendulum consists of a light string 1.70 m long with a small 0.490 kg mass attached. The pendulum starts out at 45^\circ below the horizontal and is given an initial downward speed of 1.50 m/s. At the bottom of the arc, determine the centripetal acceleration of the ...
June 25, 2011 by Luis

Physics
A simple pendulum consists of a light string 1.70 m long with a small 0.490 kg mass attached. The pendulum starts out at 45^\circ below the horizontal and is given an initial downward speed of 1.50 m/s. At the bottom of the arc, determine the centripetal acceleration of the ...
June 25, 2011 by Luis

physics
calculate the speed of the pendulum at its lowest point if its PE is 5J at its heighest point and has a total mass of 1kg. 5 Joules = (1/2) M V^2 at lowest point. Solve that equation for V at lowest point.
June 16, 2007 by Sweety

physics
A simple pendulum has a mass m and carries a charge q. The pendulum is suspended between the vertical plates of a capacitor of separation distance d. If the string of the pendulum makes an angle θ with the vertical, what is the potential difference between the plates
March 12, 2012 by David

physics
A simple pendulum has a mass m and carries a charge q. The pendulum is suspended between the vertical plates of a capacitor of separation distance d. If the string of the pendulum makes an angle θ with the vertical, what is the potential difference between the plates
March 13, 2012 by David

physics
A simple pendulum has a mass m and carries a charge q. The pendulum is suspended between the vertical plates of a capacitor of separation distance d. If the string of the pendulum makes an angle θ with the vertical, what is the potential difference between the plates
March 13, 2012 by David

Physics
A simple pendulum consists of a light string 1.70 m long with a small 0.490 kg mass attached. The pendulum starts out at 45º below the horizontal and is given an initial downward speed of 1.50 m/s. find: At the bottom of the arc, determine the centripetal acceleration of the ...
June 25, 2011 by Luis

physics
a 1 kg mass is attached to a spring hanging vertically and hangs at rest in the equilibrium position. the spring constant of the spring is 1 n/cm. the mass is pulled downward 2 cm and released. what is the speed of the mass when it is 1 cm above the point from which it was ...
March 23, 2011 by Jess

Physics
The string of a conical pendulum is 54.5 cm long and the mass of the bob is 0.22 kg. a) Find the angle between the string and the horizontal when the tension in the string is three times the weight of the bob. b)Under those conditions, what is the period of the pendulum?
February 26, 2012 by J

Science
A uniform metal ball (mass m) is tied to the end of a string (massless, length L). The other end of the string is fixed. The ball is moving in a vertical circle centered at the fixed end of the string. Suppose the velocity of the ball at the lowest point is v, what is the ...
May 3, 2016 by Chan

Physics
A 24.00 kg block at rest on a horizontal frictionless air track is connected to the wall via a spring. The equilibrium position of the mass is defined to be at x=0. Somebody pushes the mass to the position x=0.3500 m, then lets it go. The mass undergoes simple harmonic motion ...
November 8, 2014 by Liz

physic
A 1.0-kg steel ball and a 2.0-m cord of negligible mass makeup a simple pendulum that can pivot without friction about thepoint O, as in the picture below. This pendulum isreleased from rest in a horizontal position, and when the ball isat its lowest point it strikes a 1.0-kg ...
February 27, 2011 by Anonymous

Physics 20
A 2.50-kg Pendulum is attatched to a string 11.4m stringis pulled aside until it is.386m above its lowest position and released. The pendulum is designed to emit sound waves at a frequency of 440 Hz; However, as it swings toward and away from an observer, the frequency appears...
July 13, 2009 by Moe

Math
A certain mass is supported by a spring so that it is at rest 0.5 m above a table top. The lowest position of the mass is 0.1 m, and the highest position is 0.9 m. The mass is pulled down 0.4 m at time =0, creating a periodic up and down motion. It takes 1.2 s for the mass to ...
July 27, 2011 by hhfo

Physics
You are at a furniture store and notice that a Grandfather clock has its time regulated by a physical pendulum that consists of a rod with a movable weight on it. When the weight is moved downward, the pendulum slows down; when it is moved upward, the pendulum swings faster. ...
January 3, 2012 by Lexi

Physics
A pendulum bob has a mass of 1kg. The length of the pendulum is 2m. The bob is pulled to one side to an angle of 10degree from the vertical. What is the velocity of the pendulum bob as it swings through it's lowest point? What is angular velocity?
March 10, 2016 by Sam

Physics
A mass is tied to a 1 m string. The string is attached to a point on a horizontal frictionless surface and the mass is set into circular motion. The string will break if tension becomes larger than 10 N. The maximum kinetic energy that the mass can achieve before the string ...
November 3, 2016 by Anonymous

Physics Angular Motion
a 5.0 kg mass attached to the end of a string swings in a vertical circle (radius 2m) when the mass is at its lowest point on the circle the speed of the mass is 12 m/s. What is the tension of the string at this point?
August 4, 2013 by Xian

Physics
A 0.50 kg mass is attached to the end of a string swing in a vertical circle(radius=2.0m). When the sting is horizontal, the speed of the mass is 8.0 m/s. What is the magnitude of the force of the string on the mass at this position?
April 28, 2016 by Anonymous

Physics : Young's Modulus
A mass m is attached to a weightless string of length L, cross section S, and tensile strength ( the maximum tension it can withstand ) T . The mass is suddenly released from a point near the fixed end of the string. What condition should be on the value of Young's modulus Y ...
May 23, 2013 by Rafi Tanzim

physics
Consider an ideal spring that has an unstretched length l0 = 3.9 m. Assume the spring has a constant k = 20 N/m. Suppose the spring is attached to a mass m = 6 kg that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x0 = 1.7 m from...
October 10, 2013 by mark

Physics
Consider an ideal spring that has an unstretched length l0 = 3.9 m. Assume the spring has a constant k = 20 N/m. Suppose the spring is attached to a mass m = 6 kg that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x0 = 1.7 m from...
October 10, 2013 by Anonymous

physics
Consider an ideal spring that has an unstretched length l0 = 3.9 m. Assume the spring has a constant k = 20 N/m. Suppose the spring is attached to a mass m = 6 kg that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x0 = 1.7 m from...
October 11, 2013 by anon

Physics HELP!
A simple pendulum consists of a small object of mass 7.40 kg hanging at the end of a 2.10 m long light string that is connected to a pivot point. (a) Calculate the magnitude of the torque (due to the force of gravity) about this pivot point when the string makes a 3.00° angle...
November 7, 2012 by Brad

physics
A simple pendulum consists of a small object of mass 3.20 kg hanging at the end of a 3.70 m long light string that is connected to a pivot point. (a) Calculate the magnitude of the torque (due to the force of gravity) about this pivot point when the string makes a 7.00° angle...
November 11, 2012 by Anonymous

physics
a particle a of mass 2kg and particle b of mass 1kg are connected by alight elastic string c, and initially held at rest 0.9m apart on a smooth horizontal table with the string in tension. they are then simultaneously released . the string releases 12j of energy as it ...
July 7, 2013 by isaac

Physics(IMPORTANT)
A small ball of mass m=0.60 kg hangs from a massless string of length l=0.9 m. The ball travels in a vertical circle and its speed at the bottom is v0=6.0 m/s (see figure). Neglect all friction and air drag, and use g=10m/s^2 for the gravitational acceleration. The ball is so ...
November 1, 2013 by keitanako

physics
A simple pendulum consists of a small object of mass 1.2 kg hanging at the end of a 2.07 m long light string that is connected to a pivot point. Calculate the magnitude of the torque (due to the force of gravity) about this pivot point when the string makes an angle of 6.59 ...
March 26, 2014 by Anonymous

physics
A pendulum is constructed from a thin, rigid, and uniform rod with a small sphere attached to the end opposite the pivot. This arrangement is a good approximation to a simple pendulum (period = 5.97 s), because the mass of the sphere (lead) is much greater than the mass of the...
November 17, 2010 by Dawb

trigo
A pendulum of length 10 cm has swung so that theta is the radian measure of the angle formed by the pendulum and a vertical line .Show that the number of centimeters in the vertical height of the end of the pendulum above its lowest position is 20 sin squared 1/2 theta...
September 28, 2014 by rai zan

Physics (please help!!!!)
The mass m = 14 kg shown in the figure is displaced a distance x to the right from its equilibrium position. (Take k1 = 113 N/m and k2 = 198 N/m.) (a) What is the net force acting on the mass? (Use any variable or symbol stated above along with the following as necessary: ...
April 24, 2011 by HELP!

Physics
A simple pendulum consists of a 3 kg point of mass hanging at the end of a 2 m long light string that is connected to a pivot point. a. Calculate the magnitude of the torque (due to gravitational force) around this pivot point when the string makes a 5 degree angle with the ...
December 7, 2008 by Kathrine

physics
A pendulum consists of a mass m = 0.12 kg hanging from a flexible string of length L. The string is very thin, very light, and does not stretch. It makes small oscillations, with a period of 0.663 s. What is the oscillation frequency of the pendulum? What would the period of ...
April 29, 2011 by Joan

physics
A block of mass m = 1.02 kg is suspended above the ground at a height h = 14.4 m by a spool with two arms. The spool-with- arms arrangement is a combination of a solid uniform cylinder of mass M = 3.43 kg and radius R = 0.440 m, and two rods, each of length l = 0.559 m and ...
November 4, 2014 by Lauren

physics
a squirt gun is tied to a string and released when it is 1 meter above the ground. the mass of the gun is .1kg. what ist its initial PE? 1Joule what is its PE when it has fallen to .75meters? .75 J What is its KE at this point? .25 J What is its velocity? 0 m/s Above is the ...
January 28, 2013 by Anonymous

Physics
Consider the figure above consisting of three particles of mass m attached to a massless rod. Given an axis of rotation through point P, the rod rotates as shown in the figure. If the rod is released from rest in the horizontal position at t = 0. What is the angular ...
August 1, 2015 by Anonymous

physics
73. A mobile is formed by supporting four metal butterflies of equal mass m from a string of length L. The points of support are evenly spaced a distance apart as shown in Figure P5.73. The string forms an angle 1 with the ceiling at each end point. The center section of ...
October 7, 2012 by audree

Physics
Cn u plz gv explaination 2 d solutions bit by bit in brief? Cz i really dnt understand hw 2 apply d formula 2 solve it when i revise nw.Thnkz. [g=10 m/s^2 ]a particle P of mass m kg on a rough horizontal table. The coefficient of friction between P & the table is 1 /4. The ...
September 29, 2008 by Ling

Physics
Consider an ideal spring that has an unstretched length l0 = 3.3 m. Assume the spring has a constant k = 23 N/m. Suppose the spring is attached to a mass m = 6 kg that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x0 = 1.6 m from...
October 15, 2013 by Tj

physics
A pendulum with a bob of mass 30g is lifted to height of 5.00cm above its lowest point and allowed to fall so that collides elastically with a block of mass 20g that rests on a smooth horizontal floor. The block stops 5 seconds after the collision. Assuming no sound is ...
July 28, 2013 by Eryy

physics
As shown in the diagram, a bullet of mass 7.0 g strikes a block of wood of mass 2.1 kg. The block of wood is suspended by a string of length 2.0 m, forming a pendulum. The bullet lodges in the wood, and together they swing upward a distance of 0.40 m from the original position...
January 4, 2016 by jose

science
if you have a 343 J of kinetic energy at the lowest point of a pendulum's swing and at the highest point has a height of 5 m what is the pendulum's mass
February 11, 2011 by Lex

ss01
A small ball of mass m=0.60 kg hangs from a massless string of length l= 0.8 m. The ball travels in a vertical circle and its speed at the bottom is v0= 5.0 m/s (see figure). Neglect all friction and air drag, and use g=10 m/s2 for the gravitational acceleration. The ball is ...
November 2, 2013 by 8.01x

physics
A tennis ball on a string is being swung in a horizontal circle of radius r. The ball has mass m and the string length l. Which expression gives the magnitude of the tension T in the string in terms only of the speed v of the ball and of m, r, and l? Answer choices 1. T=mgr/l ...
November 28, 2009 by Anonymous

Physics
A small metal ball with a mass of m = 78.9 g is attached to a string of length l = 1.76 m. It is held at an angle of = 44.5° with respect to the vertical. The ball is then released. When the rope is vertical, the ball collides head-on and perfectly elastically with an ...
May 3, 2016 by Kevin

physics
A new type of spring is found where the spring force F is given by F=-kx + bx^2 where k=400 N/ m and b=100 N/m^2 and x is the expansion (or compression) of the spring from its equilibrium position. The spring is attached to a point mass of 1 kg sitting on a horizontal ...
April 4, 2011 by Physics

physics
A mass M of 2.95 kg is attached to the end of a string whose length is 0.420 m. The mass slides without friction on a horizontal surface as indicated in the diagram. If the string can withstand a maximum tension of 127.5 N, what is the maximum tangential speed the ball can ...
October 16, 2013 by Anonymous

maths
3. An elastic string hangs from a nail N. When as mass of m grams is attached to its lower end, the elastic is stretched so that its lower length is x cm, as shown in the diagram: N The table shows result of the two experiments: Length (x cm) 43 49 Mass (m grams) 50 80 m It is...
February 9, 2012 by puk

Physics 1
A mass m1 = 4.9 kg rests on a frictionless table and connected by a massless string over a massless pulley to another mass m2 = 4.7 kg which hangs freely from the string. When released, the hanging mass falls a distance d = 0.8 m.
April 5, 2013 by Brandon

Physics
A pendulum consists of a tiny bob of mass M and a uniform cord of mass m and length L. A) determine a formula for the period B) what would be the fraction error if one used the formula for a simple pendulum.
April 22, 2008 by (Simple)

physics
The figure below shows a claw hammer being used to pull a nail out of a horizontal board where θ = 32.2°. The mass of the hammer is 1.00 kg. A force of 125 N is exerted horizontally as shown, and the nail does not yet move relative to the board. Assume the force the ...
March 31, 2014 by Anonymous

Physics HELP!!!!
A small ball of mass m=0.60 kg hangs from a massless string of length l= 1.2 m. The ball travels in a vertical circle and its speed at the bottom is v0= 6.0 m/s (see figure). Neglect all friction and air drag, and use g=10 m/s2 for the gravitational acceleration. The ball is ...
November 4, 2013 by Michael

Physics Please Help!
A small metal ball with a mass of m = 78.9 g is attached to a string of length l = 1.76 m. It is held at an angle of = 44.5° with respect to the vertical. The ball is then released. When the rope is vertical, the ball collides head-on and perfectly elastically with an ...
May 3, 2016 by Kevin

physics
A 0.33- kg pendulum bob is attached to a string 1.2 m long and hangs vertically as shown in Figure 1. What is the change in the pendulum bob’s gravitational potential energy as it swings from the lowest point of the pendulum to a point that is 35 degree to the vertical?
September 6, 2012 by farah

Physics
A pendulum bob with a mass of 0.4 kg is released from a position in which the bob is 20 cm above the low point in its swing. What’s the speed of the bob as it passes through the low point in its swing?
March 2, 2014 by Jennifer

physics
20. does the international space station have gravitational pe? ke? explain? -It has gravitation pe. I thought that Gravitational potential energy is the energy stored in an object as the result of its vertical position or height? 30.a moving hammer hits a nail and drives it ...
October 17, 2007 by jess

physics
A pendulum consists of a uniform disk with radius r = 10 cm and mass 480 g attached to a uniform rod with length L = 500 mm and mass 175 g. (a) Calculate the rotational inertia of the pendulum about the pivot. (b) What is the distance between the pivot and the center of mass ...
April 15, 2007 by john

physics
A 2.15 kg mass is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of 18.7 N is required to hold the mass at rest when it is pulled 0.205 m from its equilibrium position (the origin of the x axis). The mass is now released from rest with an ...
November 17, 2010 by Anonymous

PHYSICS
Fig. 6-48 shows a conical pendulum, in which the bob (the small object at the lower end of the cord) moves in a horizontal circle at constant speed. (The cord sweeps out a cone as the bob rotates.) The bob has a mass of 0.038 kg, the string has length L = 1.2 m and negligible ...
March 1, 2008 by greg

physics
A pendulum and a mass spring system are both undergoing simple harmonic motion on Earth (use g = 10 N/kg). It is observed that every time the pendulum goes back and forth, the spring has gone up and down 14 times. If the pendulum has a length of 5 meters and the mass is 100 g...
December 31, 2012 by sunny

Physics
A pendulum and a mass spring system are both undergoing simple harmonic motion on Earth (use g = 10 N/kg). It is observed that every time the pendulum goes back and forth, the spring has gone up and down 12 times. If the pendulum has a length of 4 meters and the mass is 100 g...
January 20, 2013 by Anthony

phy
Review. An object with a mass of m 5 5.10 kg is attached to the free end of a light string wrapped around a reel of radius R 5 0.250 m and mass M 5 3.00 kg. The reel is a solid disk, free to rotate in a vertical plane about the horizontal axis passing through its center as ...
January 3, 2013 by Anonymous

physics
A 2.20kg mass is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of 21.3N is required to hold the mass at rest when it is pulled 0.190m from its equilibrium position (the origin of the x axis). The mass is now released from rest with an ...
November 14, 2013 by nicole

physics
The figure below shows a "conical pendulum", in which the bob (the small object at the lower end of the cord) moves in a horizontal circle at constant speed. (The cord sweeps out a cone as the bob rotates.) The bob has a mass of 0.035 kg, the string has length L = 0.90 m and ...
December 11, 2008 by johnny

physics
Figure 6-43 shows a "conical pendulum", in which the bob (the small object at the lower end of the cord) moves in a horizontal circle at constant speed. (The cord sweeps out a cone as the bob rotates.) The bob has a mass of 0.060 kg, the string has length L = 0.90 m and ...
December 5, 2010 by :)

Physics
A mass m = 13 kg is connected to two different springs, one on the left and another on the right. It is displaced a distance x to the right from its equilibrium position. (Take k1 = 115 N/m and k2 = 198 N/m.) (a) What is the net force acting on the mass? (Use any variable or ...
July 13, 2012 by Bruce

physics
A simple pendulum is made from a bob of mass 0.04 kg suspended on alight string of length 1.4m. Keeping the string taut, the pendulum is pulled to one side until it has gained a height of 0.1m. calculate: a. The total energy of the oscillation (b) the amplitude of the ...
January 16, 2012 by Nuwaya

physics
please check my answers. 20. does the international space station have gravitational pe? ke? explain? -It has gravitation pe. I thought that Gravitational potential energy is the energy stored in an object as the result of its vertical position or height? 30.a moving hammer ...
October 16, 2007 by jess

Physics HELP!!
A small ball of mass m=0.60 kg hangs from a massless string of length l= 1.2 m. The ball travels in a vertical circle and its speed at the bottom is v0= 6.0 m/s (see figure). Neglect all friction and air drag, and use g=10 m/s2 for the gravitational acceleration. The ball is ...
November 4, 2013 by Chelsea

Physics
An atwood machine consists of a massless string connecting two masses over a massless, frictionless pully. In this case, the masses are 1.70kg and 1.65kg. The system is released from rest with the 1.7kg mass 2.15m above the floor and the 1.65kg mass on the floor. (a) what is ...
October 4, 2010 by Larry

physics
Consider an ideal spring that has an unstretched length l0 = 3.9 m. Assume the spring has a constant k = 20 N/m. Suppose the spring is attached to a mass m = 6 kg that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x0 = 1.7 m from...
October 11, 2013 by PLS HELP

physics
As shown in the figure, a bullet of mass m and speed v passes completely through a pendulum bob of mass M. The bullet emerges with a speed of v/2. The pendulum bob is suspended by a stiff rod of length ℓ and negligible mass. 2.1 Derive an expression for the minimum value...
June 8, 2016 by Tan

physics
A grandfather clock uses a physical pendulum to keep time. The pendulum consists of a uniform thin rod of mass M = 7.01 kg and length L = 0.15 m that is pivoted freely about one end, with a solid sphere of the same mass, 7.01 kg, and a radius of L/2 centered about the free end...
February 19, 2012 by janny

mechanics
a non uniform rod ab of length 4 m and mass 5 kg is in equilibrium in horizontal position resting on two supports at point C and D wgere AC= 1 m and AD= 2 m. the magnitude of reaction at C is half of the reaction at D. Find the distance of the centre of mass of the rod from A
April 17, 2011 by sufyaan

physics
A block of ice of mass 4.10 kg is placed against a horizontal spring that has force constant k = 210 N/m and is compressed a distance 2.60×10−2 m. The spring is released and accelerates the block along a horizontal surface. You can ignore friction and the mass of the ...
October 7, 2010 by ami

Physics. LAST PROBLEM!!
A small metal ball with a mass of m = 82.5 g is attached to a string of length l = 1.72 m. It is held at an angle of θ = 58.5° with respect to the vertical. The ball is then released. When the rope is vertical, the ball collides head-on and perfectly elastically with an ...
March 26, 2013 by Elena

Physics AP
A conical pendulum is formed by attaching a 50 g mass to a 1.2m string. The mass swings around a circle of radius 25cm. A claculate the speed of the mass. B Calculate the acceleration of the mass. C calculate the tension in the string
December 19, 2013 by Robert

physics
A 25,000 kg rocket ship near the surface of the Earth accelerates upwards due to a constant 1.25 MN of thrust from its engine. A simple pendulum on the ship is observed to complete 100 full swings in 75.0 s. What is the length of the string? 1. For a simple pendulum: T = 2&#...
February 20, 2015 by Anonymous

Physics
A simple pendulum of the length 0.350 m starts from rest at a max displacement of 10 degrees. from equilibrium position. a) At what time will the pendulum be located at an angle of displacement of 8 degrees? b) When will the pendulum return to its starting position?
January 21, 2013 by Derrick M.

Physics
A simple pendulum has mass 1.14 kg and length 0.760 m. (a) What is the period of the pendulum near the surface of Earth? (b) If the same mass is attached to a spring, what spring constant would result in the period of motion found in part (a)?
February 15, 2015 by Joanna

Physics
A simple pendulum consists of a light rod of length L = 0.9 m anchored at a fixed point (like the ceiling), and a small mass m = 0.5 kg attached to the free end.  The configuration is moved to an angle Î¸ = 39 degrees from the vertical and released from rest.  Due to the ...
October 22, 2012 by Alphonse

Physics - drwls can you help me with this?
A 2.00kg block hangs from a rubber cord, being supported so that the cord is not stretched. The unstretched length of the cord is 0.500m and it's mass is 5.00g.The "spring constant" for the cord is 100N/m. Block is released and stops at lowest point. a) determine the tension ...
February 20, 2008 by ~christina~