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October 23, 2014

Search: Find the acceleration experienced by each of the two masses shown in Figure P4.49 if the coefficient of kinetic friction between the 7.00 kg mass and the plane is 0.300.

Number of results: 109,159

physics
A snowboarder of mass 74.4 kg (including gear and clothing), starting with a speed of 5.0 m/s, slides down a slope at an angle = 37.1 with the horizontal. The coefficient of kinetic friction is 0.116. What is the net work done on the snowboarder in the first 6.02 s of descent
February 21, 2011 by Anonymous

Physics
A 27.0kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 71.0N and is directed at an angle of 30.0deg above the horizontal. Determine the coefficient of kinetic friction.
October 15, 2012 by Danielle

physics
During the Olympic ice competition, Boris (m = 75 kg) glides at 1.8 m/s to a stationary Juliette (52 kg) and hangs on. How far will the pair slide after the collision if the coefficient of kinetic friction between the ice and their skates is .042?
June 4, 2014 by grey

Physics
A block of mass m1 = 22.0 kg is connected to a block of mass m2 = 40.0 kg by a massless string that passes over a light, frictionless pulley. The 40.0-kg block is connected to a spring that has negligible mass and a force constant of k = 260 N/m as shown in the figure below. ...
March 12, 2013 by Anonymous

physics
The coefficient of static friction between the tires of a car and a horizontal road is 0.515. As the car brakes, what is the magnitude of the maximum acceleration of the car? Assume the net force on the car is the maximum static friction force.
February 5, 2010 by Kevin

physics
A flight attendant pulls her 69.1 N flight bag a distance of 280 m along a level airport floor at a constant velocity. The force she exerts is 32.7 N at an angle of 50.2◦ above the horizon- tal. a) Find the work she does on the flight bag. Answer in units of J. b) Find ...
October 13, 2008 by billy

Physics
Please help me with these three questions,they deal with coefficient of friction 1) A car rounds a turn of radius 25m at a speed of 20m/s. Find the coefficient of friction neccessary to keep the car on the road 2) A man is attempting to slide a piece of furniture weighing 750N...
January 27, 2010 by bryian

physics
A small block of mass m = 1.1 kg slides, without friction, along the loop-the-loop track shown. The block starts from the point P a distance h = 56.0 m above the bottom of the loop of radius R = 17.0 m. What is the kinetic energy of the mass at the point A on the loop? What is...
March 11, 2012 by Katie

physics
A small block of mass m = 1.1 kg slides, without friction, along the loop-the-loop track shown. The block starts from the point P a distance h = 56.0 m above the bottom of the loop of radius R = 17.0 m. What is the kinetic energy of the mass at the point A on the loop? What is...
March 11, 2012 by Katie

Physics
A small block of mass m = 1.3 kg slides, without friction, along the loop-the-loop track shown. The block starts from the point P a distance h = 54.0 m above the bottom of the loop of radius R = 19.0 m. What is the kinetic energy of the mass at the point A on the loop? What is...
December 24, 2013 by Daniel

PHYSICS: Conservative Forces and Potential Energy
A mass m = 18 kg is pulled along a horizontal floor with NO friction for a distance d =6.6 m. Then the mass is pulled up an incline that makes an angle θ = 38 with the horizontal and has a coefficient of kinetic friction μk = 0.44. The entire time the massless rope ...
November 2, 2011 by Mary

physics
The magnitude of each force is 283 N, the force on the right is applied at an angle 41 and the mass of the block is 27 kg. The coefficient of friction is 0.283. The acceleration of gravity is 9.8 m/s2 . 27 kg μ = 0.283 283 N 41 degrees 283 N What is the magnitude of the...
November 10, 2013 by james

physics
The 235-kg cart in the figure starts from rest and rolls with negligible friction. It is pulled by three ropes as shown. It moves 600. m horizontally. Find the final velocity of the cart. F1 = 500N at 0 degree F2 = 500N at 40.1 degree F3 = 400N at 30 degree
March 26, 2011 by ashyLerry

physics
Two artifacts in a museum display are hung from vertical walls by very light wires, as shown in the figure.Find the tension in the horizontal wire ifw=158Nandm=30.0 kg.
October 22, 2012 by Anonymous

PHYSICS
NEED HELP ON THE ANSWER OF THIS PROBLEM THE EFFICIENCY OF THE PULLEY DECREASES WITH A COEFFICIENT OF FRICTION OF 2.0 THE EFFICIENCY OF THE PULLEY IS 60% WHAT WOULD YOU EXPECT THE EFFICIENCY TO BE IF THE COEFFICIENT OF FRICTION INCREASED TO 0.3
November 1, 2010 by AMBER

physics
A 1 kg object starts 3 meters from the ground on a 24 degree incline with a friction coefficient of 0.12. When it hits the ground, it collides and sticks to a 8 kg object. The coefficient friction on the horizontal surface is 0.24 How far do the objects travel away from the ...
December 21, 2008 by matt

physics
A block is pulled to the right across a alevel surface at a constant velocity of a horizontal force of 16 newtons. what is the coefficient of kinetic friction between the block and the surface?
May 24, 2012 by Jen

i need help i couldnt figure this out...
A block of mass m = 3 kg is attached to a spring (k = 35 N/m) by a rope that hangs over a pulley of mass M = 6 kg and radius R = 6 cm, as shown in the figure. Treating the pulley as a solid homogeneous disk, neglecting friction at the axle of the pulley, and assuming the ...
April 2, 2011 by samJoint

Physics Classical Mechanics
The figure below shows the experimental setup to study the collision between two carts. In the experiment cart A rolls to the right on the level track, away from the motion sensor at the left end of the track. Cart B is initially at rest. The mass of cart A is equal to the ...
October 28, 2013 by Anonymous

Physics
Traveling at a speed of 16.1 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.72. How much time does it take for the car to come to a stop? Ignore air resistance.
October 22, 2009 by Allison

physics
A potter's wheel having a radius 0.45 m and a moment of inertia of 14.9 kg m2 is rotating freely at 49 rev/min. The potter can stop the wheel in 8.0 s by pressing a wet rag against the rim and exerting a radially inward force of 72 N. Find the effective coefficient of ...
December 1, 2012 by heather

Physics
A 100 N force is applied to a 50.0 kg crate resting on a level florr. The coeeficient of kinetic friction is 0.15. a. What is the acceleration of the crate?
January 28, 2011 by jdajaljk

physics
A triple beam balance, like the scales we use every week in lab, works using rotational equilibrium. If a 253 g mass is placed on the pan, 1 cm from the pivot, and there are three masses, 1 g, 10 g, and 50 g masses on the other side can be slid back and forth between 0 cm and ...
October 18, 2014 by John

Constant acceleration
How is constant acceleration shown on a velocity-time graph? Isnt it shown as a straight line rising upward?
November 30, 2010 by Teya

Physics
Determine the acceleration of a 1500 kg automobile that rolls down an incline of 30 from the horizontal if a coefficient of friction between the tires and the incline is 0.12
June 10, 2014 by Corey Brown

Physics
Alright so I need some help were doing Friction and Centripetal Force A 1250 Kg car traveling at 12 m/s is exiting circular highway exit ramp with a radius of 36 meters then I'm asked to find the acceleration the centripetal force the normal foce which I have done then I'm ...
May 11, 2009 by HELP ME!

Physics kinetic energy
Okay the equation for kinetic energy is = 1/2mv^2 so how would i figure this out?? If a semi-truck decreases its speed from 10 m/s to 5 m/s, its new Kinetic Energy is: a)4 times its old Kinetic Energy b)2 times its old Kinetic Energy c)1/2 its old Kinetic Energy d)1/4 its old ...
October 30, 2010 by Aisumi

physics
If my kinetic coefficient and static coefficient are both 1.02, how can I explain why they are the same???? (For a horizontal surface)
October 22, 2013 by Miranda

TOm
Hello, this is the last question that I can't seem to or 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 with air is 0.750 m^2 and the air density is 1,31 kg/m^3...
January 27, 2012 by Physics

BOBPURSLEY or anyone
h t t p : / / w w w . j i s k h a .c o m / d i s p l a y . c g i ? i d = 1 25 2 8 8 8 9 2 9 ok hmmm m2 g = m1 (acceleration radial) so then if this is the correct equation my question... is how do you know when to consider the masses as a system and when not to? net force = ...
September 13, 2009 by AP Physics B

Physics: Aluminum Block
A 1.65-kg aluminum block and a 6.85-kg copper block are connected by a light string over a frictionless pulley. The two blocks are allowed to move on a fixed steel block wedge (of angle = 31.0) as shown in the figure. Making use of the table below, determine the following. ...
March 4, 2013 by crystal

physics
An object slides down a inclined surface in the presence of kinetic friction forces. At the given inclination the kinetic friction force is found to be of magnitude 90 N. Now, the angle that the surface makes with respect to the horizontal is increased and the object continues...
October 16, 2009 by Nancy

physics
hello! I have been having a lot of trouble with one physics problem that I have for homework: any help would be greatly appreciated! 'A block of mass 12 kg starts from rest and slides a distance of 8 m down an inclined plane making an angle of 40 with the horizontal. The ...
November 25, 2007 by Ty

Physics
A 275 kg piano slides 4.0 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 magnitude of the force exerted by the man. b) Calculate the work ...
December 11, 2013 by Josh

Physics
A 275 kg piano slides 4.0 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 magnitude of the force exerted by the man. b) Calculate the work ...
December 11, 2013 by Josh

Physics
A horizontal force of 150 N is used to push a 43.5 kg packing crate a distance of 5.30 m on a rough horizontal surface. If the crate moves at constant speed, find each of the following. (a) the work done by the 150 N force (b) the coefficient of kinetic friction between the ...
November 8, 2011 by Raqual

Physics
A horizontal force of 150 N is used to push a 43.5 kg packing crate a distance of 5.30 m on a rough horizontal surface. If the crate moves at constant speed, find each of the following. (a) the work done by the 150 N force (b) the coefficient of kinetic friction between the ...
November 8, 2011 by Raqual

Physics
A horizontal force of 150 N is used to push a 32.5-kg packing crate a distance of 4.95 m on a rough horizontal surface. If the crate moves at constant speed, find each of the following. (a) the work done by the 150-N force? (b) the coefficient of kinetic friction between the ...
May 3, 2013 by Abdul A.

Physics
A horizontal force of 150 N is used to push a 32.5-kg packing crate a distance of 4.95 m on a rough horizontal surface. If the crate moves at constant speed, find each of the following. (a) the work done by the 150-N force? (b) the coefficient of kinetic friction between the ...
May 7, 2013 by Abdalla A.

physics
A 20kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 80N and is directed at a angle of 30.0degrees above the horizontal. Determine the coefficient of kinetic friction.
February 13, 2012 by Natasha

Science
A car is traveling down a hill that makes an angle of 14 with the horizontal. The driver applies her brakes, and the wheels lock so that the car begins to skid. The coefficient of kinetic friction between the tires and the road is μK = 0.55.
October 14, 2012 by Anonymous

physics
A block of mass m1 = 13.5 kg rests on a wedge of angle θ = 27∘ placed over a table.. An inextensible string is attached to Block M1, passes over a frictionless pulley at the top of the wedge, and is then attached to another block of mass M2 = 3 kg. The coefficient ...
October 1, 2013 by ss01

physics
A mass m = 17.0 kg is pulled along a horizontal floor with NO friction for a distance d =5.1 m. Then the mass is pulled up an incline that makes an angle = 30.0 with the horizontal and has a coefficient of kinetic friction k = 0.34. The entire time the massless rope used ...
October 18, 2012 by mohamed

science
A 75-kg person on skis is going down a hill sloped at 30.0. The coefficient of kinetic friction between the skis and the snow is 0.15. How fast is the skier going 10.0 s after starting from rest?
December 5, 2010 by Bob

physics
A 50kg girl sits at the top of a slide 6m long tilted at an angle of 30 degrees. if it takes her 3.3s to slide to the bottom and the coefficient of kinetic friction is 0.45, how fast will she be going at the bottom?
April 10, 2014 by Al

Applied maths-mechanics
A block of mass 300kg is just pulled along rough horizontal ground by two equal force inclined at 30 degrees to the line of motion.if the coefficient of friction is 0.6.find the value of P
March 25, 2013 by Mathapelo

physic
Hi! I try already but, the answer is wrong could you help me to fix it out. A sledge loaded with bricks has a total mass of 17.8 kg and is pulled at constant speed by a rope inclined at 20.8 above the horizontal. The sledge moves a distance of 20.6 m on a horizontal surface. ...
October 27, 2009 by Chan

Physics
A 920 kg sports car collides into the rear end of a 2300 kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.5 m before stopping. The police officer, knowing that the coefficient of kinetic friction between tires and road is ...
April 17, 2011 by Brittney

njeyeza
4. Two masses 2kg and 3kg that are attached to each other slide together as a unit, and then break apart (as shown below). If the final velocity for m2 is 10m/s after breaking,
September 29, 2014 by mapli

physics
Linc, the 65kg lifeguard, slides down a water slide that is inclined at an angle of 35 degrees to the horizontal, into the community swimming pool. If the coefficient of friction of the slide is 0.050, what is Linc's rate of acceleration as he slides down? -Draw the free body ...
November 26, 2012 by Ben

physics
What is the minimum downward force on the box in the figure that will keep it from slipping? The coefficients of static and kinetic friction between the box and the floor are 0.30 and 0.20, respectively.
March 15, 2010 by norm

physics
What is the minimum downward force on the box in the figure that will keep it from slipping? The coefficients of static and kinetic friction between the box and the floor are 0.35 and 0.25, respectively.
June 14, 2010 by Anonymous

physics
What is the minimum downward force on the box in the figure that will keep it from slipping? The coefficients of static and kinetic friction between the box and the floor are 0.38 and 0.28, respectively.
June 7, 2012 by garth

PHYSICS
I don't know where to start solving this question. Please help! A 320 kg piano slides 3.7 m down a 32 degree 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 0.39. Calculate the ...
November 8, 2010 by MegP

physics
A box of mass 5.0 kg starting from rest slides down a 1.8 m long ramp inclined at an angle of 22.0 deg. from the horizontal. If the ramp is frictionless, how long will it take the box, starting from rest, to reach the bottom of the ramp? if the frictionless ramp is replaced ...
March 20, 2014 by Yarielis

Physics
Starting from rest, a 11.50 kg suitcase slides 3.18 m down a frictionless ramp inclined at 40 from the floor. The suitcase then slides an additional 5.22 m along the floor before coming to a stop. (a) Determine the suitcase's speed at the bottom of the ramp. (b) Determine the...
October 14, 2012 by Angela

Physics
Two blocks of masses m1 = 2.00 kg and m2 = 3.70 kg are each released from rest at a height of h = 5.60 m on a frictionless track, as shown in the figure below, and undergo an elastic head-on collision. (Let the positive direction point to the right. Indicate the direction with...
October 29, 2012 by Jessica

Physics
Two blocks of masses m1 = 2.00 kg and m2 = 3.70 kg are each released from rest at a height of h = 5.60 m on a frictionless track, as shown in the figure below, and undergo an elastic head-on collision. (Let the positive direction point to the right. Indicate the direction with...
October 29, 2012 by Jessica

physics
A stationary mass of 10 kg disintegrates explosively, with the evolution of 4.2*10^5 J, into three parts, two having equal masses of 3 kg. These two masses move at right angles to each other. Calculate the speed of the third part.
January 16, 2012 by rikki

Physics
An 81-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is 0.49. (a) What is the magnitude of the frictional force? (b) If the player comes to rest after 1.6 s, what was his initial velocity?
November 13, 2009 by Litany

physics
a 2.5kg poodle slides across a frozen lake at a speed of 6.3m/s. the coefficient of kinetic friction between poodle and ice is 0.088. show that the poodle will slide 7.3 seconds before coming to rest.
April 3, 2010 by sherri

Physics
An 81 kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is .49. a) what is the magnitude of the frictional force? b) If the player comes to a rest after 1/6s, what was his initial velocity?
January 16, 2013 by Anonymous

physics
A disk with a mass of 29 kg and a radius of 31 cm is mounted on a frictionless horizontal axle. A string is wound many times around the disk and then attached to a 70-kg block, as shown in the figure. Find the acceleration of the block, assuming that the string does not slip.
March 25, 2011 by Anonymous

physics
A disk with a mass of 16 kg and a radius of 41 cm is mounted on a frictionless horizontal axle. A string is wound many times around the disk and then attached to a 70-kg block, as shown in the figure. Find the acceleration of the block, assuming that the string does not slip.
November 7, 2012 by ravi

Physics
two blocks are connected by a light rope over a pulley fixed at the edge of a table such that bloc A, 16kg is a the table top and block B, 8kg is hanging by the edge. block A is acted upon by a mass of 200N acting towards the center of table surface. the coefficient of kinetic...
April 8, 2013 by ashton

physic
Please help me I have no idea how to do this problem at all. Question:A sledge loaded with bricks has a total mass of 17.8 kg and is pulled at constant speed by a rope inclined at 20.8 above the horizontal. The sledge moves a distance of 20.6 m on a horizontal surface. The ...
October 24, 2009 by Chan

Physics
If you use a horizontal force of 31.0 N to slide a 10.5 kg wooden crate across a floor at a constant velocity, what is the coefficient of kinetic friction between the crate and the floor? I tried 3.32 but it said that was wrong ?
January 5, 2010 by Sasha

Physics
Suppose that the coefficient of kinetic friction of the rubber of a car tire and the street is Uk = 0.8. What is the deceleration of the car on a flat street if the driver brakes sharply, so all the wheels are locked and skidding?
October 23, 2010 by Lisa

physics
A worker pushed a 34.0-kg block 10.0 m along a level floor at a constant speed with a force directed 39.0 below the horizontal. If the coefficient of kinetic friction is 0.20, how much work did the worker do on the block?
October 28, 2010 by student

Physics
A 3 kg block is being pulled by a string at a constant speed on a surface with a coefficient of kinetic friction of 0.3. If the string is at an angle of 30 degrees with the horizontal, what is the magnitude of the force necessary to pull the block?
June 30, 2011 by Megan

Physics
A force of 580 N is needed to be applied on a rope at an angle of 30 to the horizontal in pulling a crate with a constant velocity across a horizontal plank. What is the mass of the crate if the coefficient of kinetic friction is o.25?
November 28, 2011 by Nimfa

physics
Jackie exerts a 43 N horizontal force as she pulls a sled that weighs 140 N across a cement sidewalk at a constant speed. What is the coefficient of kinetic friction between the sidewalk and the sled?
October 4, 2012 by alexus

physics
A hockey puck is hit on a frozen lake and starts moving with a speed of 14.4 m/s. 3.0 seconds later, its speed is 7.3 m/s. (b) What is the average value of the coefficient of kinetic friction between puck and ice?
October 5, 2012 by Anonymous

Physics
A block of mass m is given an initial speed of v along a horizontal frictional track. It travels a distance d and comes to a rest. the coefficient of kinetic friction between the block and the track is ....
September 15, 2014 by Anonymous

Physics
A horizontal force of 3,000,000 dynes can keep a 50 kg mass in uniform motion. What is the coefficient of the kinetic friction? At what angle must the plane be tilted to allow the mass to slide?
September 26, 2014 by Ked

science cbse school
a force of 10 newton gives a mass m1 an acceleration of 2m/s2 and a mass m2 an acceleration of 4m/s2.what acceleration would it givr if both the masses are tied together?
August 17, 2014 by p.gayathri

Physics
A box is pushed down an incline from point A to point B by a force F (and also under the influence of its weight). The distance from A to B, along the ramp, is 5.0 m. The force F is parallel to the incline, as shown, and has a magnitude of 2.0 N. The force of kinetic friction ...
May 30, 2014 by Abby

Physics
A flat (unbanked) curve on a highway has a radius of 200 m. A car rounds the curve at a speed of 26.0 m/s. What is the minimum coefficient of friction that will prevent sliding? Our professor didn't even go over this, and it is way more complex than anything in the book. Plus...
September 22, 2006 by Josh

Physics
A hardworking ant must supply 0.00955 N to pull a small piece of fruit at constant velocity over a distance of 8.60 cm up a small hill to the entrance of the colony. If the coefficient of kinetic friction between the piece of fruit and the 16.2 sloped hill is 0.540, calculate...
November 4, 2013 by Anonymous

physics
the coefficients of static and kinetic friction for stone on wood are, respectively, 0.5 and 0.4. if a 150 kg stone statue is pushed with just enough force to start moving across a wooden floor and the same force continues to act afterward. find the statues acceleration.
November 7, 2012 by tom

physics
The L-shaped object in the figure below consists of three masses (m1 = 8.90 kg, m2 = 1.16 kg and m3 = 2.40 kg) connected by light rods of length L1 = 1.29 m and L2 = 1.86 m.What torque must be applied to this object to give it an angular acceleration of 1.46 rad/s2 if it is ...
April 14, 2013 by Anonymous

Physics help
Two masses m1 = 2 kg and m2 = 4 kg are connected by a light string. Mass m2 is connected to mass M = 14 kg by a string that passes over an ideal pulley. Determine the following quantities when the system is released from rest. (a) The acceleration of the masses m/s2 (b) The ...
October 26, 2012 by arcos15

physics
The launching mechanism of a toy gun consists of a spring of unknown spring constant, as shown in the figure below. If the spring is compressed a distance of 0.160 m and the gun fired vertically as shown, the gun can launch a 21.0-g projectile from rest to a maximum height of ...
March 21, 2013 by Anonymous

physics
Ice fishing equipment weighing 3,000 N is pulled at a constant speed V = 0.5 m/s across a frozen lake by means of a horizontal rope. If the coefficient of kinetic friction is 0.05, what is the work done (in J) by the fisherman in pulling the equipment a distance of 500 m?
October 3, 2012 by Drew

Physica
A box of a mass 1500 kg slides from rest on inclined plane , as shown in figure(the angle 30) .Neglecting the Frictional force ,the magniture of its acceleration is ;
July 15, 2012 by Q13

physics
How large must the coefficient of static friction be between the tires and the road if a car is to round a level curve of radius 85m at a speed of 96km/hr? How do I figure this out if no mass is given?
October 3, 2010 by Anonymous

physics
In the figure, two skaters, each of mass 58.0 kg, approach each other along parallel paths separated by 2.79 m. They have opposite velocities of 1.50 m/s each. One skater carries one end of a long pole of negligible mass, and the other skater grabs the other end as she passes...
December 5, 2013 by kristy

Physics
Two identical masses are connected by a (massless, stretchless) string across a (massless, frictionless) pulley. The mass on the right is held so that the string connected to it is horizontal. Everything is initially at rest; the tension is the string is zero. The mass on the ...
August 10, 2012 by Chad

Physics
A crate with a total mass of 18.0 kg is pulled by a person along the floor at a constant speed by a rope. The rope is inclined at 20 degree above the horizontal, and the crate moves 20.0 m on a horizontal surface. The coefficient of kinetic friction between the floor and the ...
August 8, 2013 by Anonymous

Physics
A bullet of mass 1.910−3kg embeds itself in a wooden block with mass 0.987kg, which then compresses a spring (k=120N/m) by a distance 3.510−2m before coming to rest. The coefficient of kinetic friction between the block and table is 0.42. What fraction of ...
October 8, 2010 by Bartholomew

Arbor
a car is traveling at 50.0 km/h on a flat highway. a) if the coeffcient of kinetic friction between the road and the tires on a rainy day is 0.100, what is the minimum distance needed for the car to stop? b) What is th stopping distance when the surface is dry and the ...
January 8, 2013 by Anonymous

maths
A block of mass 20kg resting on a horizontal force 50N.If the coefficient of friction between the table and the block is 0.45,calculate the acceleration with which it moves
November 27, 2011 by Kingsley

Physics
A 60 kg box is on a 80 m long plane which is inclined at 30 degrees, the coefficient of friction is 0.25. How much force is needed to move it up a plane A.) at a constant velocity and B.) with an acceleration of 2 m/s^2
October 21, 2012 by C0C0

Physics
A 59-kg person on skis is going down a hill sloped at 30 from the horizontal. The coefficient of friction between the skis and the snow is 0.10. What would be the magnitude of the acceleration?
November 5, 2013 by matt

physics
suppose that a 70.0kg box is pulled by a 400.N force at an angle of 30 degrees to the horizontal. the coefficient of sliding friction is 0.500. what is the acceleration of the box?
July 23, 2014 by sam

physics
The coefficient of friction between the block of mass m1 = 3.00 kg and the surface in the figure below is k = 0.365. The system starts from rest. What is the speed of the ball of mass m2 = 5.00 kg when it has fallen a distance h = 1.90 m?
April 19, 2012 by zamdirhy

Physics
Consider the system of blocks in the figure below, with m2 = 5.0 kg and = 33. If the coefficient of static friction between block #1 and the inclined plane is S = 0.24, what is the largest mass m1 for which the blocks will remain at rest?
October 19, 2012 by Lily

Physics
A 500g block is shot up a 25degree incline with an initial speed of 200cm/s. Determine the distance, d, that it will go up the incline if the coefficient of kinetic friction between it and the incline is 0.150? Use Entergy considerations to solve the problem.
May 2, 2013 by Anonymous

physics
A 95.9-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is k = 0.554. (a) What is the magnitude of the frictional force? (b) If the player comes to rest after 1.63 s, what is his initial speed?
July 8, 2013 by tcc

Physics
A horizontal force of magnitude 30.0 N pushes a block of mass 3.85 kg a distance of 3.00 m across a floor, where the coefficient of kinetic friction is 0.600 a.)How much work is done by that applied force on the block-floor system? b.)During that displacement, the thermal ...
November 30, 2010 by Sam

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