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Kinetic Friction Solutions Library

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18 solutions

Kinetic Friction

Q. A 25 kg box is released on a 23° incline and accelerates down the incline at 0.30 m/s2.A) Find the friction force impeding its motion.B) What is th...

Solved • Dec 17, 2020

Kinetic Friction

Q. A wood box is first pushed by a person across a wood floor at a steady speed, and then the person stops pushing; the box then continues to slide fo...

Solved • Oct 13, 2020

Kinetic Friction

Q. Two bicycle tires are set rolling with the same initial speed of 3.80 m/s along a long, straight road, and the distance each travels before its spe...

Solved • Aug 28, 2020

Kinetic Friction

Q. Two bicycle tires are set rolling with the same initial speed of 3.80 m/s along a long, straight road, and the distance each travels before its spe...

Solved • Jul 14, 2020

Kinetic Friction

Q. A nurse pushes a cart by exerting a force on the handle at a downward angle 35° below the horizontal. The loaded cart has a mass of 28.0 kg, and th...

Solved • Jun 2, 2020

Kinetic Friction

Q. How would the force of kinetic friction change if you increased the angle of a track? Explain.

Solved • Jun 2, 2020

Kinetic Friction

Q. A block with mass 0.50 kg is forced against a horizontal spring of negligible mass, compressing the spring a distance of 0.20 m (Figure 1). When re...

Solved • May 19, 2020

Kinetic Friction

Q. A contestant in a winter sporting event pushes a 45.0-kg block of ice across a frozen lake as shown in the figure. Gine the coefficient of static f...

Solved • May 19, 2020

Kinetic Friction

Q. Suppose that the coefficient of kinetic friction between Zak's feet and the floor, while wearing socks, is 0.250. Knowing this, Zak decides to get ...

Solved • May 2, 2020

Kinetic Friction

Q. Rank the crates on the basis of the kinetic frictional force acting on them. Rank from largest to smallest. To rank items as equivalent, overlap th...

Solved • Apr 27, 2020

Kinetic Friction

Q. Calculate the velocity of a spherical raindrop falling from 5.4 km.Take the size across the rain drop to be 3.2 mm, the density of air to be 1.25 k...

Solved • Apr 24, 2020

Kinetic Friction

Q. You've slammed on the brakes and your car is skidding to a stop while going down a 20-degree hill.Draw a Free Body Diagram of this. 

Solved • Apr 21, 2020

Kinetic Friction

Q. Your physics textbook is sliding to the right across the table.Identify all forces acting on the object.Check all that apply.  Normal force n⃗     ...

Solved • Apr 7, 2020

Kinetic Friction

Q. A 1500 kg car skids to a halt on a wet road where μk = 0.54.How fast was the car traveling if it leaves 60-m-long skid marks?

Solved • Mar 18, 2020

Kinetic Friction

Q. A block of mass 2.20 kg is accelerated across a rough surface by a light cord passing over a small pulley as shown in the figure. The tension T in ...

Solved • Oct 29, 2018

Kinetic Friction

Q. At the beginning of a new school term, a student moves a box of books by attaching a rope to the box and pulling with a force of F = 85.7 N at an a...

Solved • May 24, 2017

Kinetic Friction

Q. An object that weights 75.0 N is pulled on a horizontal surface by a horizontal pull of 50.0 N to the right. The friction force on this object is 3...

Solved • Jan 18, 2017

Kinetic Friction

Q. You are pushing a box, mass  m, across a rough horizontal floor with a constant speed, v. The coefficient of static friction is μ s and the coeffic...

Solved • Dec 22, 2016