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December 21, 2014

Search: mass m and resistance R slides without friction down

Number of results: 43,804

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A. A Bowler releases his ball at a speed of 3m/sec. If the ball has a diameter of 250 mm, what spin w should be put on the ball so there is no slipping? If he puts on only half of this spin w, keeping the same speed of 3 m/sec., what is the speed after .3 sec.? The ball has a ...
April 18, 2012 by anirudh dhiman

phy
A 290 kg piano slides 4.6 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40. (a) Calculate the force exerted by the man. N (b) Calculate the work done by the man ...
September 25, 2010 by mas

College physics
a child with a mass of 40 kg slides down a vertical pole with an acceleration of 6 m/s squared. what is the magnitude and direction of the frictional force that acts on the child?
February 4, 2010 by Pete

physics
a block of a mass starts from rest and slides down a surface which correspnds to a quarter of a circle. if the curved surface is smooth, what is the speed at the bottom?
April 22, 2013 by mojalefa

Physics
A hollow, spherical shell with mass 2.00 kg rolls without slipping down a slope angled at 38.0 degrees. (a) Find the acceleration, the friction force, and the minimum coefficient of fricition needed to prevent slipping. You will find the moment of inertia (I) of a hollow ...
March 27, 2007 by Karla

physics
An 8.65-kg block slides with an initial speed of 1.52 m/s up a ramp inclined at an angle of 27.6° with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.56. Use energy conservation to find the distance the block slides before coming to rest.
October 27, 2011 by Jim

Physics
Disk 1(of mass m) slides with speed 1.0 m/s across a low friction surface and collides with disk 2( of mass 2m) originally at rest. Disk 1 is observed to bounce off at an angle of 15degrees to its original line of motion, while disk 2 moves at an angle of 55degrees. a) What is...
November 20, 2014 by Dane

Physics
Wrote the name and subject bad in the other post, sry:: Hello, this is the last question that I can't seem to be able to solve: 1. Jenny (75 kg) goes on a ski trip. She goes down a slope that's inclined at 15*. The drag coefficient of Jenny is 0.300, the surface of contact ...
January 27, 2012 by Tom

Math, Physics
Two blocks with indicated masses are connected by a cable of negligible mass over a pulley with radius 45cm. The block on the incline is sliding without friction and experiences a constant acceleration of 2 m/sec^2. Determine the mass of the pulley
June 23, 2013 by Sterling

physics
A box of unknown mass is placed at rest at the top of a 3m long ramp that is inclined at 30 degrees, and it slides to the bottom in 2s. What is the acceleration of the box, what is the coeff of kinetic friction between the box and the plank?
May 2, 2011 by Anonymous

Physcis
An object slides without friction in a bowl shaped like a hemisphere. It is released from rest at one edge of the bowl, slides up the other side before stopping right on the edge of the bowl. During which part of this process is the power being delivered by the gravitational ...
June 22, 2011 by Casey

Physics
a 65 kg sled starting from the rest slides down a 14 m high frictionless ramp. at the bottom of the ramp the sled encounters a level area that is not frictionless. how much work is done by friction to stop the sled?
April 16, 2012 by Kim

physics
Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 26.0. If Santa slides 7.00 before reaching the edge, what is his speed as he leaves the roof?
October 6, 2009 by Angela

physics
Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 30.0. If Santa slides 5.00 before reaching the edge, what is his speed as he leaves the roof?
January 28, 2010 by k-Paul

physics
a 1 kg dart moving horizntally at 10 m/s sticks to a wood block of mass 9 kg which slides across a friction free level surface. what is the speed of the block and dart after collision?
November 22, 2010 by lisa

Science
If it takes 35s for the tughboat to increse its speed uniformly to 25 km/h, starting from rest. The barge has a mass of 75Mg. The propeller provides the propulsion force F which gives the tughboat foward motion, where as the barge moves freely. Determine the force of the rope ...
August 1, 2011 by Andrew

Physics
A 10 m long frictionless ramp is inclined at an angle of 30 degress to the horizontal. A boy of mass 57 kg coasts down the incline on a skateboard of mass 3.0 kg. The acceleration due to gravity may be taken as 9.8 m/s^2 and the effects of air resistance can be ignored. a) ...
October 22, 2011 by Erin

Dynamic
A block of mass m is released from a height of R. The block slides down along the path ABC. At point C the block collides a spring of sti ness k. (a) If the circular arc AB is frictionless and the coecient of kinetic friction between the block and surface BC is k, then nd ...
March 26, 2013 by None

physics
find the expression for the acceleration of a cylinder rolling down without slipping on a rough inclined plane also obtained an expression for coefficient of friction
March 19, 2013 by shashi ranjan

physics
In Figure 8-50, a block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level, where a frictional force stops the block in a distance d. The block's initial speed ...
February 19, 2011 by Anonymous

Physics
Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 30.0. If Santa slides 5.00m before reaching the edge, what is his speed as he leaves the roof?
January 28, 2010 by k-Paul

physics
A 2.0-kg wooden block slides down an inclined plane 1.0 m high and 3.0 m long. The block starts from rest at the top of the plane. The coefficient of kinetic friction between the block and plane is 0.35. What is the speed of the block when it reaches the bottom?
August 1, 2011 by angel

physics
A block with mass m =7.3 kg is hung from a vertical spring. When the mass hangs in equilibrium, the spring stretches x = 0.21 m. While at this equilibrium position, the mass is then given an initial push downward at v = 4.5 m/s. The block oscillates on the spring without ...
February 6, 2012 by Chad

physics 2 !!**
A 8 kg crate is placed at rest on an incline plane (s=0.8, k=0.5), whose angle is 60o. It then slides 3 m down the incline. work done by gravity: ?J work done by friction force: ?J Using your results from part a, find the speed of the crate after sliding this distance.
October 6, 2008 by kelsey

media
I have to make a powerpoint presentation between 6-9 slides including notes. In regards to making people recycle but I just do not know how to make so many slides for just recycling because there is not much information. Can someone help me with ideas or how to break it down ...
September 24, 2007 by student A

Physics
Im talking about the friction between a golf club and the air as the golf club is swinging towards the ball. how does the mass of the club, the velocity of the swing and the acceleration affect the friction acting on the club and how much will it slow down?
April 26, 2009 by Lena

PHYSICS!!!!...PLEASE HELP
Ski boots are usually made with releasable bindings. This is done for safety – if you fall and your ski gets caught, the binding between the boot and the ski will release so the ski pops off rather than twisting your knee. Sometimes this leads to the embarrassing situation of ...
April 22, 2013 by HELP ME...uRGENT!...PLEASE

physics
A helium balloon and its gondola, of mass M, are in the air and stationary with respect to the ground. A passenger, of mass m, then climbs out and slides down a rope with speed v, measured with respect to the balloon. With what speed (relative to Earth) does the balloon then ...
March 11, 2010 by Anonymous

physics
note ... find acceleration by using distance and time (ignore ”incline” ... just treat it like linear motion of object starting from rest). A 1.8 kg mass starts from rest and slides down an inclined plane 8.8×10−1 m long in 0.54 s. What net force is acting on the mass ...
November 20, 2014 by Anonymous

physics
A child slides down a slide with a 28° incline, and at the bottom her speed is precisely three-fifths what it would have been if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child Height= length/sin28 energy available...
December 14, 2006 by Anonymous

physics
A 2kg mass is released from rest and slides down an inclined plane of 60 degrees a distance of 1 eter. It strikes a 250 N/m spring. What is the maximum compression of a spring?
November 21, 2009 by jon

physicssss
A mass m = 73 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 17.9 m and finally a flat straight section at the same height as the center of the loop (17.9 m off the ground). Since the mass would not make it around the loop if ...
October 8, 2011 by aaa

physics
A mass m = 73 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 17.9 m and finally a flat straight section at the same height as the center of the loop (17.9 m off the ground). Since the mass would not make it around the loop if ...
October 11, 2011 by a

Physics
An object with a mass of 12 kg slides 9 meters across a horizontal surface with a coefficient of kinetic friction of 0.22. For the duration of the slide an external force, F1, with a magnitude of 43 Newtons acts on the mass in the positive y direction while another force, F2, ...
October 31, 2012 by Chelsea

Physics
An object with a mass of 12 kg slides 9 meters across a horizontal surface with a coefficient of kinetic friction of 0.22. For the duration of the slide an external force, F1, with a magnitude of 43 Newtons acts on the mass in the positive y direction while another force, F2, ...
October 31, 2012 by Chelsea

Physics
When mass M is at the position shown, it is sliding down the inclined part of a slide at a speed of 1.89 m/s. The mass stops a distance S2 = 2.1 m along the level part of the slide. The distance S1 = 1.18 m and the angle θ = 35.10°. Calculate the coefficient of kinetic ...
March 24, 2011 by Tom

physics- multiple choice
1. A transport truck pulls on a trailer with a force of 600N [E]. The trailer pulls on the transport truck with a force a) of zero b) of less than 600 N is the truck is slowing down c) equal to 600 N only if the truck is moving at constant velocity d) equal to 600 N no matter ...
January 19, 2014 by Diane

physics
A 20 kg block slides with an initial speed of 11 m/s up a ramp inclined at an angle of 25o with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.8. Use energy conservation to find the distance along the incline that the block slides ...
March 26, 2012 by andy

Physics
Mass 1 with a unknown mass starts at rest at the top of a frictionless from a height of 13 meters. It then slides down the incline and moves over a horizontal frictionless surface and collides inelastically (head on) with mass 2 which is 25.4 kg and initially at rest. After ...
November 11, 2014 by Jess

College Physics
A child slides down a slide with a 24 incline, and at the bottom her speed is precisely half what it would have been if the slide had been frictionless.Calculate the coefficient of kinetic friction between the slide and the child.
February 11, 2010 by Sandy

physics
A block lies on a smooth plane tilted at an angle č = 28.5° to the horizontal. Ignore friction. (a) Determine the acceleration of the block as it slides down the plane. 1 m/s2 (b) If the block starts from rest 9.40 m up the plane from its base, what will be the block's speed ...
December 7, 2010 by An

physics
A 5kg ball is thrown upward with an initial speed of 30m/s. Suppose there is a constant air resistance of 25N opposing the motion during its entire up and down path. How much work was done by air resistance during the entire path up and down. Wfric= -f X (-30)(62)= -1860J is ...
December 20, 2010 by dipset

Physics
A 44.0 kgseal at an amusement park slides from rest down a ramp into the pool below. The top of the ramp is 1.75 m higher than the surface of the water and the ramp is inclined at an angle of 35. degrees above the horizontal. If the seal reaches the water with a speed of 4.00...
December 16, 2010 by Lisa

Physics
2.A 3.65 kg mass is hung from a spring with a k constant of 535.0 N/m. How far does the spring stretch? 3.A 35 kg crate slides from rest down a ramp inclined at 29o onto a spring with a force constant of 4.5 x 102 N/m. The spring is compressed a distance of 0.45 m before the ...
November 12, 2011 by holly

Physics
An object (mass 3.2kg ) slides upward on a vertical wall at constant velocity when a force F of 54N acts on it at an angle of 60∘ to the horizontal. N = 27 N Determine the force of kinetic friction on the object.
October 3, 2013 by Cheech

physics
A man pushes on a piano of mass 180 so that it slides at a constant velocity of 12.0 down a ramp that is inclined at 11.0 above the horizontal. No appreciable friction is acting on the piano. Calculate the magnitude and direction of this push A. if the man pushes parallel to ...
November 8, 2010 by bob

Physics
A man pushes on a piano of mass 180 kg so that it slides at a constant velocity of 12.0 cm/s down a ramp that is inclined at 11.0degrees above the horizontal. No appreciable friction is acting on the piano. Calculate the magnitude and direction of this push (a)if the man ...
November 11, 2010 by Carmen

Physics
A block of mass 2.00kg starts at rest at the top of a ramp that is inclined delta= 40.0 degrees with the horizontal. The block slides down the ramp a distance of 3.60 meters where it contacts a relaxed spring with K=300N/m. If the coefficient of kinetic friction between the ...
October 19, 2011 by Daniel

Physics
A car with a mass of 1264 kg is coasting in neutral on a straight,level road. It slows down, and its speed as a function of time is given by the equation: Constant Value Units a 26.8 m/s b 0.310 m/s2 c 2.10·10-3 m/s2 At a time of 36.0 s the speed, as given by the above ...
January 2, 2014 by John

physics
A block of mass m = 4 kg slides along a horizontal table when it encounters the free end of a horizontal spring of spring constant k = 14 N/m. The spring is initially on its equilibrium state, defined when its free end is at x=0 . Right before the collision, the block is ...
October 15, 2013 by ss01

PHYSICS PLEASE HELP !!!!!
An object with a mass of 13 kg slides 5 meters across a horizontal surface with a coefficient of kinetic friction of 0.38. For the duration of the slide an external force, F1, acts on the mass in the positive y direction while another force, F2, has a magnitude of 67 Newtons ...
October 27, 2011 by Amanda

Physics
A 2.00kg solid sphere of radius 5.00cm rolls down a 20 degrees inclined plane starting from rest. (a) What is the magnitude of the acceleration of the center of mass of the sphere? (b) How far down the plane does it roll without slipping in 1.00s?
November 29, 2014 by Nick

Physics
A skydiver has an air resistance force of 1193 N and a mass of 94 kg, what is her current acceleration? Take down to be POSITIVE and use g = 10 m/s/s. Please report your units as "m/s/s"
November 2, 2010 by keith

physics
Starting with an initial speed v0, a mass m slides down a curved frictionless track (a shown in the figure below), arriving at the bottom with a speed v. From what vertical elevation h did it start?
August 23, 2012 by Aisling

Physics
A block of mass 21.0kg kg slides down a frictionless surface inclined at 33 ∘ ^\circ.To ensure that the block does not accelerate, what is the magnitude of the smallest force that you must exert on it?
February 19, 2014 by Shannon

physics
The question is a child slides down a slide with a 28 degree incline and at the bottom her speed is precisely half what it would have been if the slide had been frictionless. Calculate the coefficient of the kinetic friction between the slide and the child.
September 18, 2009 by perry

Physics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 17, 2013 by Anonymous

physics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 17, 2013 by Anonymous

PHYSICS(HELP)
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 18, 2013 by Anonymous

physics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 18, 2013 by Anonymous

PHYSICS(HELP)
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead ...
October 19, 2013 by michael

PHYSICS (HELP)
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 21, 2013 by Anonymous

PHYSICS Gr. 11
A of car of mass 2000 kg has a force forward due to the engine of 4500N and experiences an air resistance of 1500N. IF we ignore the friction with the road, what is the acceleration of this car? thanx :)
April 15, 2010 by Anonymous

physics
A 2.5-kg block slides down a 17.0° inclined plane with constant acceleration. The block starts from rest at the top. At the bottom its velocity reaches 0.70 m/s. The length of the incline is 1.7 m. What is the acceleration of the block? What is the coefficient of friction ...
November 1, 2011 by Eddie

physics
Two horizontal parallel wires which carry currents I1 = 45 A (top)and I2 (bottom). The top wire is held in position, the bottom wire is prevented from moving sideways but can slide up and down without friction. If the wires have a mass of 9.2 g per metre of length, calculate ...
March 21, 2010 by Jane

Physics
1. A ball is launched from a cliff with an initial velcity of 10 m/s at an angle of 40 degrees above horizontal. If the ball lands 24 m away, determine the height of the cliff. 2. if the mass A is 1 kg and the mass of B is 6.0 kg, determine the acceleration of the system and ...
June 26, 2014 by Liz

Physics
A block of mass 0.4 kg rests on the inclined surface of a wedge of mass 1.7 kg. The wedge is acted upon by a horizontal force F~ and slides on a frictionless surface. The acceleration of gravity is 9.81 m/s2. If the coefficient of static friction between the wedge and the...
October 8, 2012 by Amanda and Leah

physics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 21, 2013 by Anonymous

PHYSICS HELP!!!
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 21, 2013 by Anonymous

Physics
A 2.6 kg block slides down a 25° inclined plane with constant acceleration. The block starts from rest at the top. At the bottom, its velocity is 0.80 m/s. The incline is 1.6 m long. (a) What is the acceleration of the block? m/s2 wb=m*g=2.6*9.8=25.48 fp=25.48sin25=10.77n Fn=...
October 16, 2014 by Miah

physics
need help with this question please a 1kg block starts at rest and slides down the incline. the coefficient of friction between the incline and the block is 0.1. The height of the incline is 2m, and the angle is 30 degrees. use energy consideration to find the block's speed at...
November 15, 2009 by sammeh

Physics
A box of mass 1kg is placed on a table and is connected to a hanging mass m by a string strung over a pulley. If the coefficient of kinetic friction between the box and the table is .3 and the box slides at a constant speed of .5m/s what is the weight of the hanging mass? to ...
November 14, 2007 by Andrea

physics
A crate slides down an incline right angled trough. The coefficient of kinetic friction between the crate and the trought is mew_k(not sure if i spelt it right). What is the acceleration of the crate in terms of mew_k theda and g? I think I need to use F=ma and then to find a ...
November 28, 2006 by Brian

physics
A 16 kg block slides down a frictionless slope which is at angle θ = 20◦. Starting from rest,the time to slide down is t = 1.88 s.The acceleration of gravity is 9.8 m/s2.
October 26, 2011 by Anonymous

Phyics
A box of mass 14.0 kg sits on a horizontal steel ramp 4.8 m long with a coefficient of static friction of 0.40 between the ramp and the box. The end of the ramp is slowly lifted until the box begins to slide down the ramp. What angle does the ramp make with the ground when ...
March 20, 2014 by Marlerne

Phsyics
A 44.0kg seal at an amusement park slides from rest down a ramp into the pool below. The top of the ramp is 1.75m higher than the surface of the water and the ramp is inclined at an angle of 35.0 degrees above the horizontal. What is the coefficient of kinetic friction between...
December 17, 2010 by Lisa

Physics
A 75 kg box slides down a 25 degree ramp with an acceleration of 3.60 meters per second squared. Find the coefficient of kenetic friction between the box and the ramp. What acceleration would a 175 kg box have on this ramp?
November 3, 2010 by Daniel

Physics Classical Mechanics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 21, 2013 by Anonymous

Physics
Two blocks with masses M1=8.50kg and M2=1.40kg are attached by a thin string which goes over a frictionless, massless pulley. M1 slides on an incline and there is friction between M1 and the incline. The incline is at an angle of 23.0 degrees from horizontal. M2 travels down ...
June 18, 2013 by Sam Cole

Physics
A box of mass m and initial speed v0 slides distance d across a horizontal floor before coming to rest. Use work and energy to find an expression for the coefficient of kinetic friction.Express your answer in terms of the variables v0, d, and free fall acceleration g.
November 8, 2014 by Dib

Physics
A block of mass 0.40 kg rests on the inclined surface of a wedge of mass 7.0 kg. The wedge is acted on by a horizontal force F with arrow and slides on a frictionless surface. a)If the coefficient of static friction between the wedge and the block is µs = 0.30, and the angle ...
October 17, 2014 by John Smith

Physics
A car with a mass of 1264 kg is coasting in neutral on a straight,level road. It slows down, and its speed as a function of time is given by the equation: v(t) = a − bt + ct2 Constant Value Units a 26.8 m/s b 0.310 m/s2 c 2.10*10^-3 m/s2 At a time of 36.0 s the speed, as...
January 2, 2014 by John

Physics
during a hockey game a puck of mass .3 kg is given an inital speed of 12m/s. it slides 50 m o the ice before stopping. Assume the puck decelerates at a constant rate. what is the coefficient of friction betweent the puck and the ice? I know that it would be a very small answer...
October 10, 2007 by Tammy

Physics
A roller coaster has a mass of 425 kg. It sits at the top of a hill with height 66 m. If it drops from this hill, how fast is it going when it reaches the bottom? (Assume there is no air resistance or friction.)
May 14, 2013 by Robin

physics
In the sport of skeleton a participant jumps onto a sled (known as a skeleton) and proceeds to slide down an icy track, belly down and head first. In the 2010 Winter Olympics, the track had sixteen turns and dropped 126 m in elevation from top to bottom. (a) In the absence of ...
April 15, 2013 by Anonymous

physics
In the sport of skeleton a participant jumps onto a sled (known as a skeleton) and proceeds to slide down an icy track, belly down and head first. In the 2010 Winter Olympics, the track had sixteen turns and dropped 126 m in elevation from top to bottom. (a) In the absence of ...
April 15, 2013 by Anonymous

physics
Hello everyone, I need help with this question: A bartender slides a glass of beer down a bar with an initial velocity of 2m/s. The coefficient of kinetic friction of the bar is 0.05 and the length of the bar is 3m and the height of the bar is 1m. The mas 0.5kg. How far from ...
September 4, 2012 by Leo

dynamics
Mass of 2.3 kg and 4.5 kg is connected with the cord as shown. The coefficient of kinetic friction between box and floor is 0.35. Determine: a)The tension in the cord b)The acceleration of the blocks c)If the block start slides with 2.3 m/s, d)How far does a blocks move in 4 ...
May 7, 2013 by ruby

Physics
Suppose a hockey puck slides down a frictionless ramp with an acceleration of 4.70 m/s2. (a)What angle does the ramp make with respect to the horizontal? (b) If the ramp has a length of 6.40 m, how long does it take the puck to reach the bottom? (c) Now suppose the mass of the...
February 6, 2014 by Ray

physical science
How much work is done by the gravitational force on an object of mass 9.40 kg that is initially at rest when it falls down for a time of 1.85 seconds. Ignore air resistance
December 21, 2009 by jhon

physics
the small 2kg block A slides down the curve path and passes the lowest point B with a speed 4 m/s. If the radius of the curvature path at B is 1.5 m, determine the normal force N exerted on the block by path at this point. Is knowledge of the friction properties necessary? ...
August 17, 2010 by samad

PHYSICS HELP ASAP
a 3 kg block slides down a frictionless plane inclined 20 degrees to the horizontal. If the length of the plane's surface is 1.50m, how much work is done, and by what force? suppose the coefficient of kinetic friction between the block and the plane. What would be the net work...
January 10, 2011 by mandy

physics
EXERCISE 4.9 (a) Suppose a hockey puck slides down a frictionless ramp with an acceleration of 5.00 m/s2. What angle does the ramp make with respect to the horizontal? (b) If the ramp has a length of 6.00 m, how long does it take the puck to reach the bottom? (c) Now suppose ...
November 15, 2012 by hisham

Physics
1. A ball is launched from a cliff with an initial velcity of 10 m/s at an angle of 40 degrees above horizontal. If the ball lands 24 m away, determine the height of the cliff. 2. if the mass A is 1 kg and the mass of B is 6.0 kg, determine the acceleration of the system and ...
June 27, 2014 by Liz

math
A block of mass M1 = 2.7 kg rests on top of a second block of mass M2 = 4.7 kg, and the second block sits on a surface that is so slippery that the friction can be assumed to be zero (see the figure below). (a) If the coefficient of static friction between the blocks is ¦ĚS = ...
August 28, 2013 by Hei

physics
The maximum applied force of compression that one man’s thighbone can endure without breaking is 7.6 x104 N. The minimum effective cross-sectional area of the bone is 3 x10-4 m2, its length is 0.54 m, and Young’s modulus is Y=9.4x109 N/m2. The mass of the man is 61 kg. He ...
November 12, 2012 by stressedstudent

physics
A 2 kg mass is released from rest and slides down an inclined plane of 60 degrees a distance of 1 meter. It strikes a 250 N/m spring. What is the maximum compression of a spring? No one has answered this question yet.
November 22, 2009 by Jon

Physics - Mechanics and Ocsillatory Motion
An 8.70 kg block slides with an initial speed of 1.56 m/s up a ramp inclined at an angle of 28.4 with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.62. Use energy conservation to find the distance the block slides before coming to rest...
November 10, 2010 by Sara

Physics
A 1.1 kg block slides along a friction-less surface at 1.4 m/s. A second block, sliding at a faster 4.3 m/s, collides with the first from behind and sticks to it. The final velocity of the combined blocks is 2.6 m/s. What was the mass of the second block?
November 26, 2012 by K

physics
Starting from rest, a 5.0 kg block slides 2.5 m down a rough 30.0 degrees incline in 2.0s. Determine (a) the work done by the force of gravity. (b) the mechanical energy lost due to friction, and (c) the work done by the normal force between block and incline. I know how to do...
October 23, 2007 by Anonymous

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