Kinetic Friction Video Lessons

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Problem: 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 coefficient of kinetic friction is μ k. If you are applying the force to the box horizontally, what is the magnitude of the force that the box exerts on you?A) mgB) μsmgC) μkmgD) μkmvE) There is not enough information to say.

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Problem Details

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 coefficient of kinetic friction is μ k. If you are applying the force to the box horizontally, what is the magnitude of the force that the box exerts on you?

A) mg

B) μsmg

C) μkmg

D) μkmv

E) There is not enough information to say.

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