Wednesday

July 29, 2015

July 29, 2015

Number of results: 66,080

**physics**

For circular motion in the vertical plane, what is the centripital acceleration at the bottom of the circle? What is the magnitude of the centripetal acceleration at the top of the trajectory ? express your ans. in terms of g, M and T, where is T is tension and M is mass of ...
*October 1, 2013 by ss01*

**physics**

For this problem use the Uniform circular motion mode of the simulation. (a) Given the limits on the sliders in the simulation, what is the maximum possible speed that can be achieved in "Uniform circular motion" mode? .25 m/s For the remaining parts of this question use the ...
*December 20, 2009 by jesse*

**physics help**

A circular-motion addict of mass 70 kg rides a Ferris wheel around in a vertical circle of radius 10 m at a constant speed of 6.5 m/s. (a) What is the period of the motion? s (b) What is the magnitude of the normal force on the addict from the seat when both go through the ...
*December 14, 2008 by john*

**physics**

A circular-motion addict of mass 70 kg rides a Ferris wheel around in a vertical circle of radius 10 m at a constant speed of 6.5 m/s. (a) What is the period of the motion? s (b) What is the magnitude of the normal force on the addict from the seat when both go through the ...
*December 14, 2008 by help*

**Physics**

A circular-motion addict of mass 85 kg rides a Ferris wheel around in a vertical circle of radius 10 m at a constant speed of 6.1 m/s. (a) What is the period of the motion? __________s (b) What is the magnitude of the normal force on the addict from the seat when both go ...
*October 28, 2009 by Kajal*

**physics - uniform circular motion**

Explain why the kinematics equations which describe the motion of the object that has constant acceleration cannot be applied to uniform circular motion.
*August 23, 2010 by Shaila*

**Physics**

please check these answers for me When an object is moving with uniform circular motion, the centripetal acceleration of the object a. is circular b. is perpendicular to the plane of motion c. is zero d. is directed toward the center of motion D What is the term for the net ...
*February 15, 2009 by teamjakeward*

**Physics Circular Motion**

A swing ride at a carnival consists of chairs that are swung in a circle by 13.5-m cables attached to a vertical rotating pole. Suppose the total mass of a chair and its occupant is 170 kg, the angle θ = 53° with the vertical pole. Find the speed of the chair.
*February 20, 2015 by Jayesh*

**College Physics**

A concept question: Suppose that the centripetal force acting on an object in circular motion were increased to a new value, and the object remained in circular path with the same radius. How would its motion be affected?
*September 30, 2010 by Eric*

**Physics - Uniform circular motion**

What type of acceleration is associated with uniform circular motion?
*August 21, 2010 by Shaila*

**Physics problems**

Hi, everyone who is going to read this, thank you for trying to help me, this really means a lot to me, you are saving my behind! Ok, so here it goes: I was wondering if this information is correct; please tell me if it is not A Ferris wheel is a vertical wheel...it undergoes ...
*October 28, 2007 by Serena*

**Physics**

The equation of motion for an oscillator in vertical SHM is given by y=(0.60m)sin[(130rad/s)t]. Part A What is the amplitude of this motion? Part B What is the frequency of this motion? Part C What is the period of this motion?
*December 10, 2013 by Becca*

**physics**

A stunt man whose mass is 70 kg swings from the end of a 4.4 m long rope along the arc of a vertical circle. Assuming that he starts from rest when the rope is horizontal, find the tensions in the rope that are required to make him follow his circular path at each of the ...
*November 6, 2010 by Cho*

**Physics College - Circular motion **

At time t1 = 2.00 s, the acceleration of a particle in counterclockwise circular motion is (6.00 m/s2) i^+ (4.00 m/s2) j^. It moves at constant speed. At time t2 = 5.00 s, its acceleration is (4.00 m/s2) i^+ (-6.00 m/s2) j^. What is the radius of the path taken by the particle?
*September 21, 2014 by Ana*

**Physics**

A charged particle is projected into a uniform B-field. Its velocity vector is perpendicular to the B-field vector. What type of path will the particle travel? Neglect gravity. Answer straight line motion elliptical motion parabolic motion circular motion
*July 16, 2013 by tom*

**Physics**

Explain (wit diagram) how uniform circular motion is an example of an accelerated motion?
*July 29, 2012 by Anupam khatiwara*

**Physics**

If you throw a ball into the air at some angle with respect to the horizontal, which of the following statements about the ball is true? The acceleration is zero at the top of the motion The horizontal component of the velocity is zero at the top of the motion The velocity is ...
*January 27, 2015 by Chris*

**Physics**

A Ferris wheel with radius 14.0m is tuurning about a horizontal axis through its center. The linear speed of a passenger on the rin is constant and equal to 7.00 m/s. Whatare the magnitude and direction of the passengers acclerations as she passes through a) the lowest point ...
*June 8, 2009 by Sarah*

**physics**

A small bead of mass m is carried by a circular hoop of radius r which rotates about a fixed vertical axis. Show how one might determine the angular speed w of the hoop by observing the angle theta which locates the bead. Theta is measured to the right of the vertical axis. ...
*October 31, 2009 by Jessi*

**Physics**

While Driving Around A Curve Of 200 M Radius, You Notice That The fuzzy dice Hanging From The Rear-view Mirror Hangs At An Angle Of 15 Degree To The Vertical. 1.) What is the force diagram for the dice? 2.) What are the equations of motion in the horizontal and vertical ...
*June 11, 2013 by Bob*

**PHYSICS**

A car moves around a 4.5 km circular track at a rate of 40.0 m/s. What is the magnitude of the force that keeps a 1000-kg car in circular motion?
*September 8, 2014 by DULCE ALERIA *

**Astronomy **

Retrograde motion describe the A backward motion of the stars relative to Earth B uniform circular motion exhibited by the planets C irregular speeds at which the planet travel. D backward motion of the planets with respect to the stars I think the answer is A But my book ...
*March 28, 2010 by B*

**Physics**

A bicyclist is riding at a tangential speed of 13.9 m/s around a circular track with a radius of 38.4 m. If the magnitude of the force that maintains the bike’s circular motion is 378 N, what is the combined mass of the bicycle and rider? Answer in units of kg
*January 29, 2013 by Jacky*

**Physics**

A bicyclist is riding at a tangential speed of 13.2 m/s around a circular track with a radius of 36.5 m. If the magnitude of the force that maintains the bike’s circular motion is 378 N, what is the combined mass of the bicycle and rider? Answer in units of kg
*January 29, 2013 by Joselyn *

**Physics**

A bicyclist is riding at a tangential speed of 13.9 m/s around a circular track with a radius of 38.4 m. If the magnitude of the force that maintains the bike’s circular motion is 378 N, what is the combined mass of the bicycle and rider? Answer in units of kg
*February 4, 2013 by Maggie A.*

**Physics**

A bicyclist is riding at a tangential speed of 13.9 m/s around a circular track with a radius of 38.4 m. If the magnitude of the force that maintains the bike’s circular motion is 378 N, what is the combined mass of the bicycle and rider? Answer in units of kg
*February 4, 2013 by Maggie A.*

**Physics Circular Motion**

A 0.75-kg ball is attached to a 1.0-m rope and whirled in a vertical circle. The rope will break when the tension exceeds 450 N. What is the maximum speed the ball can have at the bottom of the circle without breaking the rope?
*February 15, 2015 by Jayesh*

**physics **

A Ferris wheel with radius 14.0 m is turning about a horizontal axis through its center as shown in the figure. The linear speed of a passenger on the rim is constant and equal to 7.0 m/s. What are the magnitude and direction of the passenger's acceleration as she passes ...
*November 6, 2010 by meera*

**SCIENCE**

a force of 70N keeps a 70-kg pilot in circular motion if he is flying a small plane at 35 m/s in circular path, what is the radius of the circular path?
*July 5, 2014 by ace ponce*

**Physics - Uniform circular motion**

If you were swingin a ball on a string around in a circle in a vertical plane, at what point in the path would the string be the most likelt to break? Explain why In what direction would the ball fly when the string broke?
*August 21, 2010 by Shaila*

**Motion equation**

I assume that is 5.5 m/s, the initial velocity. Ok, assuming that, then you know the initial KEnergy; 1/2 .62 (5.5)^2 joules. At the max height, the KE you are given is KE from horizontal motion. So subtract that amount (2.3J) from the initial KE, and you have then the KE that...
*December 24, 2006 by Fred*

**physics**

A 905 kg test car travels around a circular track with a circumference of 3.25 km. If the magnitude of the force that maintains the car's circular motion is 2140 N, what is the car's tangential speed?
*November 18, 2010 by Devon*

**Physics**

When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12Hz. When another object of mass m2 is hung on the spring along with m1, the frequency of the motion is 4Hz. Find the ratio m2/m1 of the masses.
*November 13, 2011 by Leanne*

**Physics**

When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12Hz. When another object of mass m2 is hung on the spring along with m1, the frequency of the motion is 4Hz. Find the ratio m2/m1 of the masses.
*November 13, 2011 by Leanne*

**Physics Please Help**

A spider sits on its web, undergoing simple harmonic motion with amplitude A.What fraction of each cycle does the spider spend at positions with x>0.75A? Hint: Use the analog of uniform circular motion.
*October 21, 2010 by Nikki *

**Physics Please Help**

A spider sits on its web, undergoing simple harmonic motion with amplitude A.What fraction of each cycle does the spider spend at positions with x>0.75A? Hint: Use the analog of uniform circular motion.
*October 21, 2010 by Nikki *

**Physics**

A ball (mass = 250 g) on the end of an ideal string is moving in circular motion as a conical pendulum. The length L of the string is 1.92 m and the angle with the vertical is 37 degrees. A) What is the magnitude of the torque (N m) and direction (from the listed answers) of ...
*November 13, 2010 by Miki*

**physics uncertenty**

What is the algebraic expression for the uncertainty in the centripetal acceleration σac for uniform circular motion in terms of the uncertainties in the period and the radius of the motion? (Use the following as necessary: σT, σr, ac , T, and r.)
*February 16, 2011 by Johnathon*

**physics**

A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential acceleration, Radial ...
*November 13, 2011 by sand*

**physics**

A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential acceleration, Radial ...
*November 13, 2011 by sand*

**physics**

A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential acceleration, Radial ...
*November 14, 2011 by sand*

**physics**

A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential acceleration, Radial ...
*November 15, 2011 by sand*

**physics**

A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential acceleration, Radial ...
*November 15, 2011 by sand*

**Physics**

A 3.0g bead has been threaded onto a vertical, frictionless, circular hoop with a 20cm radius. The bead is released from rest at 25º below the vertical. (a) Find the speed of the bead when it is 70° below the vertical. (b) Using the free-body diagram technique, find the normal...
*July 30, 2014 by Randall*

**physics**

When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, it oscillates at a frequency of 14.2 Hz. When another object of mass m2 is hung on the spring along with the first object, the frequency of the motion is 3.40 Hz. Find the ...
*November 13, 2012 by Michelle*

**Motion equation**

A stone, which weighs 0.62kg, is thrown, at 5.5ms, its kinetic energy at its maximum height above the surface is 2.3J, what is the height of the stone at this point? Any eqautions or advice gratefully recieved. I assume that is 5.5 m/s, the initial velocity. Ok, assuming that...
*December 17, 2006 by Mac*

**Physics- Circular Motion**

If you're only given the radius of a circle, how do you find the centripetal force? The hint is what is the centripetal acceleration at the top of the circle? You cant, unless you know something about the velocity. If the velocity is just sufficent to keep the mass in a ...
*December 18, 2006 by Josiah*

**Physics**

A 2 kg pendulum bob is hanging from a 30 cm long piece of string. If the pendulum bob is allowed to move in circular motion in a horizontal plane, determine the tension in the string if the angle the string makes with the vertical is 37 degrees. Need Step by step solution.
*November 18, 2007 by Trevor*

**physics**

A balling ball of mass 70.2 kilogram is attached to the ceiling by a 4.20 meter rope. The ball is pulled to to one side and set to horizontal circular motion with a speed of 3.6 meters per second. The angle between the rope and the vertical axis is 30 degrees when pulled....
*October 6, 2014 by Anonymous*

**physics**

A newly-discovered plant, "Cosmo", has a mass that is 4 times the mass of the Earth. The radius of the Earth is Re. The gravitational field strength at the surface of Cosmo is equal to that at the surface of the Earth if the radius of Cosmo is equal to... I guess I need some ...
*January 19, 2008 by Hannah*

**physics**

A skateboard track has the form of a circular arc with a 3.20 m radius, extending to an angle of 90.0° relative to the vertical on either side of the lowest point, as shown in Figure 8-24. A 67.0 kg skateboarder starts from rest at the top of the circular arc
*February 22, 2011 by king*

**Physics**

A rock dropped from a small bridge encounters no air resistance and hits the pond below 1.0 s later. If it had been thrown horizontally with a speed of 10m/s , then it would have hit the water A. more than 1.0s later, since it has a greater distance to travel. B. 1.0s later, ...
*September 10, 2006 by JC*

**Physics, still don't get it!**

I'm sorry bobpursley I don't understand your response, please clarify. When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12 Hz. When another object of mass m2 is hung on the spring along with m1, the frequency...
*April 6, 2007 by Mary*

**Physics Circular Motion**

A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius (r). A passenger feels the seat of the car pushing upward on her with a force equal to two and a half times her weight as she goes through the dip. If r = 24.0 m, how fast is the ...
*February 20, 2015 by Jayesh*

**Physics**

A pilot is performing vertical loop the loop over the ocean at noon . The plane speeds up as it approaches the bottom of the circular loop and slows as it approaches the top of the loop. An observer in helicopter is watching the shadow of the plane on the surface of the water...
*October 24, 2011 by Yashib*

**Physics**

What is the speed of an object in circular motion called?
*May 24, 2010 by James*

**physics help!**

Objects of equal mass are oscillating up and down in simple harmonic motion on two different vertical springs. The spring constant of spring 1 is 155 N/m. The motion of the object on spring 1 has twice the amplitude as the motion of the object on spring 2. The magnitude of the...
*November 19, 2011 by meagan*

**physics**

A Ferris wheel with radius 14.0 m is turning about a horizontal axis through its center, as shown in the figure below. The linear speed of a passenger on the rim is constant and equal to 6.00 m/s. A.What is the magnitude of the passenger's acceleration as she passes through ...
*February 2, 2011 by mely*

**physics**

A Ferris wheel with radius 14.0 m is turning about a horizontal axis through its center, as shown in the figure below. The linear speed of a passenger on the rim is constant and equal to 6.00 m/s. A.What is the magnitude of the passenger's acceleration as she passes through ...
*February 2, 2011 by andrea*

**Physics**

A ball (mass m = 250 g) on the end of an ideal string is moving in circular motion as a conical pendulum as in the gure. The length L of the string is 1.67 m and the angle with the vertical is 37 degrees A) What is the magnitude of the angular momentum (kg m2/s) of the ball ...
*July 8, 2011 by jhay*

**physics**

True/False (#1 only) 1)The horizontal motion of a horizontally launched projectile affects its vertical motion. False 2)The path of a projectile through space is called its. Trajectory
*April 1, 2008 by Jon*

**physics.. important stuff !**

i still do not understand?? can someone please help me out??? (a) why is the centripetal force neede to keep a body moving in a circular path? (b) In what direction does a centripetal force accelerate the body on whic it acts?? (c) Upon what threee factors does the centripetal...
*January 15, 2007 by maria*

**physics**

a small bead can slide without friction on a circular hoop that is in a vertical plane and has a radius of 0.100 m. The hoop rotates at a constant rate of 3.00 rev/s about a vertical diameter. Find the angle beta at which the bead is in vertical equilibrium. what would happen ...
*October 24, 2011 by bob*

**physics**

A 3 kg mass attached to a string 6 m long is to be swung in a circular at a constant speed making one complete revolution in 1.25 s. Determine the value that the breaking strain that the string must not exceed if the string is not to break when the circular motion is in (a) a ...
*March 15, 2014 by waslat *

**physics**

when an object is rotating in a circle and the only force is acting on it is friction how is force of friction vector pointing towards the circle because an object in circular motion is traveling in that direction, it's accelerating towards the center of the circle, but ...
*October 12, 2009 by Physics*

**physics- vertical circular motion**

For the normal force in the drawing to have the same magnitude at all points on the vertical track, the stunt driver must adjust the speed to be different at different points. Suppose, for example, that the track has a radius of 2.06 m and that the driver goes past point 1 at ...
*February 9, 2013 by Anonymous*

**physics**

A projectile MUST____. List all that apply. a) experience a net downward force b) have a constant speed c) be accelerating d) be changing its velocity e) be moving downward f) have a horizontal motion in addition to a vertical motion
*November 13, 2012 by michael*

**physics**

A projectile MUST____. List all that apply. a) experience a net downward force b) have a constant speed c) be accelerating d) be changing its velocity e) be moving downward f) have a horizontal motion in addition to a vertical motion
*November 13, 2012 by michael*

**Physics**

Which of the following is not a good example of uniform circular motion? a) a person riding on a ferris wheel that is turning at a constant rate b) a person taking off on an airplane to fly around the world on a path defined by the equator c) a race car driving at a constant ...
*October 16, 2012 by Lewis*

**physics**

Two particles A and B are in uniform circular motion about a common center. The acceleration of particle A is 4.7 times that of particle B. Particle B takes 2.4 times as long for a rotation as particle A. Th ratio of the radius of the motion of particle A is that of particle B...
*September 23, 2011 by Audrey Petricevich*

**Advanced Dynamics and Relativity**

A point mass m is connected by a massless rod of length L to a ﬁxed point of support, such that the mass is free to rotate about the support in any direction under the inﬂuence of gravity. (a) Construct a Lagrangian in terms of suitable generalised coordinates, ...
*June 3, 2013 by Darcy*

**physics**

when an object of mass M1 is hung on a vertical spring and set vertical simple harmonic motion, its frequency is 12 Hz. When another object of mass m2 is hung on the spring along with m1, the frequency of the motion is 4hz. Find the ratio m2/m1 of the masses. Dont you have an...
*April 1, 2007 by CJ*

**Physics**

When dealing with circular motion; a string with the length of .4m is being spun horizontally, is the radius .2m?
*November 8, 2012 by Troubled*

**Physics**

In uniform circular motion, which of the following quantities are constant: speed, instantaneous velocity, tangential velocity, radial acceleration, tangential acceleration? Which of these quantities are zero throughout the motion?
*October 8, 2013 by John*

**math**

A sprinkler has a range of 11m and rotates with a circular motion. If the sprinkler covers the entire circular area, how many square meters does it cover?
*August 28, 2010 by Anonymous*

**college math**

A sprinkler has a range of 11m and rotates with a circular motion. If the sprinkler covers the entire circular area, how many square meters does it cover?
*August 30, 2010 by Anonymous*

**Physics **

A small lead ball, attached to a 1.50-m rope, is being whirled in a circle that lies in the vertical plane. The ball is whirled at a constant rate of three revolutions per second and is released on the upward part of the circular motion when it is 0.75 m above the ground. The ...
*February 26, 2013 by Randy*

**physics**

How do the acceleration vectors differ on opposite sides of the path for un iform circular motion? How are they the same?
*October 13, 2009 by Amanda*

**Physics**

1. Could a horizontal axis of rotation be used satisfactorily in an experiment uniform circular motion? Explain
*January 16, 2011 by Andrew*

**PHYSICS**

Two equal forces applied to a rotating rod, one very close to the axis and one far from the axis. Which force produces the largest torque? a. the one closest to the axis b. the one furthest from the axis How would you kick a football so that id did not spin end over end? a. at...
*July 14, 2015 by anonymous*

**Physics**

A pilot flies an airplane in a vertical circular loop at a constant speed õ = 160 m/s. If the pilot’s apparent weight at the top of the loop is one-third of his true weight when he is on the ground, find the radius R of the plane’s circular path. answer is 1960 m but i need ...
*March 19, 2010 by Drew*

**Physics**

In a popular amusement-park ride, a cylinder of radius 3.00 m is set in rotation at an angular speed of 5.00 rad/s (counter-clockwise). The floor then drops away, leaving the riders suspended against the wall in a vertical position. What minimum coefficient of friction between...
*November 19, 2008 by Bob*

**Physics**

When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12 Hz. When another object of mass m2 is hung on the spring along with m1, the frequency of the motion is 4 Hz. Find the ratio m2/m1 of the masses. For ...
*April 23, 2007 by Papito*

**physics**

a single bead can slide with negligible friction on a wire that is bent into circular loop of radius 15 cm an in the figure. the circle is always in a vertical plane and rotates steadily about its vertical diameter with a period of 0.450 s. the position of the bead is ...
*September 28, 2013 by hosni*

**physics**

What is the centripetal force of an object undergoing uniform circular motion when its radius is doubled and its speed remains constant?
*April 25, 2013 by Anonymous*

**Colle physics**

For an object in uniform circular motion, on what parameters does the experimental determination of the centripetal force depend when using F = ma
*October 28, 2014 by Tessa*

**PHYSICS**

A bucket is swung on a rope in a vertical circle as shown in the diagram below. The bucket has a mass of 1.5 kg, the radius of circular motion is 1.2 m, and it is being spun at a rate of 45 revolutions per min (RPM) what is the tension of the rope at position A (bottom) and ...
*January 20, 2011 by Anonymous*

**phsic**

When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, it oscillates at a frequency of 14.2 Hz. When another object of mass m2 is hung on the spring along with the first object, the frequency of the motion is 3.90 Hz. Find the ...
*January 20, 2014 by nada*

**Science - Physics**

When a projectile is fired horizontally, which of the components of its motion is (A) motion at constatnt speed (B) uniformly accelerated motion (C) If the initial velocity of the projectile is increased, what effect will this have on the time it takes the projectile to fall ...
*December 6, 2006 by Nicole*

**Physics**

Give an example of a vertical motion with a positive velocity and a negative acceleration. b. Give an example of a vertical motion with a negative velocity and a negative acceleration.
*February 12, 2012 by Susan*

**PHYSICS CIRCULAR MOTION**

In an automatic clothes drier, a hollow cylinder moves the clothes on a vertical circle (radius r = 0.364 m), as the drawing shows. The appliance is designed so that the clothes tumble gently as they dry. This means that when a piece of clothing reaches an angle of è above the...
*February 15, 2011 by Gina*

**physics**

A common graphical representation of motion along a straight line is the v vs. t graph, that is, the graph of (instantaneous) velocity as a function of time. In this graph, time t is plotted on the horizontal axis and velocity v on the vertical axis. Note that by definition, ...
*December 12, 2014 by Anonymous*

**Physics Circular Motion**

What is the maximum speed for a car to safely negotiate a 30 banked curve of 60 m radius if there is a coefficient of static friction of 0.35?
*February 15, 2015 by Jayesh*

**physics**

A pilot with a mass of 50 kg comes out of a vertical dive in a circular arc such that at the bottom of the arc her upward acceleration is 3.5g. (a) How does the magnitude of the force exerted by the airplane seat on the pilot at the bottom of the arc compare to her weight? (b...
*February 19, 2010 by mike*

**Physics**

A pilot with a mass of 50 kg comes out of a vertical dive in a circular arc such that at the bottom of the arc her upward acceleration is 3.5g. (a) How does the magnitude of the force exerted by the airplane seat on the pilot at the bottom of the arc compare to her weight? (b...
*September 29, 2010 by Jenny*

**Maths - Circular Motion **

One end of a string of length 1m is attatched to the rim of a 2m radius disc while the other end carries a mass of 5kg. If the tension in the string may not exceed 300N. find the maximum speed w in radians/sec and the corresponding angle of inclination of the string to the ...
*October 28, 2011 by Candice *

**Physics**

For a question in physics... I was told to draw a graph of vertical displacement, y, versus time, t, in 2sec increments from 0 to 1.8. What was given to me was: v_yo_= +10m/s v_xo_= +5m/s a_y_ = -10m/s^2 So I used the formula: y=vo+1/2at^2 I drew the graph, and got a parabala...
*October 1, 2007 by Jenny*

**physics**

A electric model train travels at 0.339 m/s around a circular track of radius 1.75 m. How many revolutions does it perform per second, i.e, what is the motion's frequency?
*March 14, 2013 by thuy*

**physics**

A electric model train travels at 0.339 m/s around a circular track of radius 1.75 m. How many revolutions does it perform per second, i.e, what is the motion's frequency?
*March 14, 2013 by thuy*

**Physics **

A pilot of mass 65 kg in a jet aircraft makes a complete vertical circle in mid-air. The vertical circle has a radius of 1.70 km at a constant speed of 215 m/s. Determine the force of the seat on the pilot at (a) the bottom of the loop and (b) the top of the loop. (Note that ...
*October 28, 2009 by Gina*