A block of mass 52 kg block is being pulled up a 15° slope by a force of 277 N directed parallel to the slope. The block's magnitude of acceleration is 1.25 m/s². What is the coefficient of kinetic friction between the block and the slope? Hk =

A block of mass 52 kg block is being pulled up a 15° slope by a force of 277 N directed parallel to the slope. The block's magnitude of acceleration is 1.25 m/s². What is the coefficient of kinetic friction between the block and the slope? Hk =

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 40PQ: A sleigh is being pulled horizontally by a train of horses at a constant speed of 8.05 m/s. The...

See similar textbooks

Similar questions

A sleigh is being pulled horizontally by a train of horses at a constant speed of 8.05 m/s. The magnitude of the normal force exerted by the snow-covered ground on the sleigh is 6.37 103 N. a. If the coefficient of kinetic friction between the sleigh and the ground is 0.23, what is the magnitude of the kinetic friction force experienced by the sleigh? b. If the only other horizontal force exerted on the sleigh is due to the horses pulling the sleigh, what must be the magnitude of this force?
a box o Cheerios (mass mC = 1.0 kg) and a box of Wheaties (mass mW 3.0 kg) are accelerated across a horizontal surface by a horizontal force applied to the Cheerios box. The magnitude of the frictional force on the Cheerios box is 2.0 N, and the magnitude of the frictional force on the Wheaties box is 4.0 N. If the magnitude of is 12 N, what is the magnitude of the force on the Wheaties box from the Cheerios box?
A 4.0 kg block is on a horizontal surface with coefficient of static friction = 0.25 and an unknown coefficient of kinetic friction. A person pushes horizontally on the block. When the block is pushed with 4.0 N of force in the same direction that the block is sliding, it slows down at a rate of 1.0 m/s2 . The magnitude of the kinetic friction force is ____ N.
Two children are pulled on a sled over snow-covered ground. The sled is pulled by a rope that makes an angle of 35° with the horizontal. The children have a combined mass of 45 kg and the sled has a mass of 5.0 kg. The coefficients of static and kinetic friction are u, = 0.20 and µ, = 0.15. Calculate the maximum possible force of static friction between the sled and snow. If the tension in the rope is 95 N, will the sled move? Justify your answer.
Two crates connected by a rope lie on a horizontal surface (see figure below). Crate A has mass mA and crate B has mass mB. The coefficient of kinetic friction between each crate and the surface is uk. The crates are pulled to the right at constant velocity by a horizontal force F. Calculate the magnitude of the force F in terms of mA, mB,& µk t F A B
A ship is launched into the water down a ramp making an angle of 8° with the horizontal. The coefficient of kinetic friction between the bottom of the ship and the ramp is μk = 0.06. What is the acceleration of the ship down the ramp? The positive x-direction is down the ramp, and the positive y-direction is parallel to the normal force. The normal force on the ramp is the y-component of the ship's weight, mg.
A block of mass m is sitting on a block of mass M. The bottom block is sitting on a horizontal floor. The coefficient of static friction between the blocks is μs1, and the coefficient of static friction between the bottom block and the floor is μs2. What is the minimum pull force F on the bottom block so that the blocks begin to move? Given that the coefficient of kinetic friction between the bottom block and the floor is μk, what is the maximum pull force F so that there is no slipping between the blocks?
A block with a mass of 3.61 kg is at rest on an inclined surface. The surface makes an angle of 10.9° relative to horizontal. The block remains at rest. What is the magnitude of the frictional force that acts on the block?
Two workers are sliding 390 kg crate across the floor. One worker pushes forward on the crate with a force of 450 NN while the other pulls in the same direction with a force of 290 NN using a rope connected to the crate. Both forces are horizontal, and the crate slides with a constant speed. What is the crate's coefficient of kinetic friction on the floor?
You are pushing a metal crate against a metal floor. The two surfaces have a static coefficient of friction of 0.62 and a kinetic coefficient of friction of 0.50. The floor is horizontal, and the crate has a mass of 25.0 kg. What is the minimum force you need to apply to get the crate moving from rest? Give your answer in units of N, to three significant figures.
You are pushing a wooden crate against a rubber floor. The two surfaces have a static coefficient of friction of 0.45 and a kinetic coefficient of friction of 0.38. The floor is horizontal, and the crate has a mass of 25.0 kg, and is initially at rest. You are pushing with a horizontal force of 155 N. What is the magnitude of the force of friction in this case? Give your answer in units of N, to three significant figures.
You are pushing a rubber crate against a concrete floor. The two surfaces have a static coefficient of friction of 0.61 and a kinetic coefficient of friction of 0.49. The floor is horizontal, and the crate has a mass of 25.0 kg, and is initially at rest. You are pushing with a horizontal force of 100 N. What is the magnitude of the force of friction in this case? Give your answer in units of N, to three significant figures.