A crate is pushed along a horizontal floor by a constant force of

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Work Energy and Power · Work Energy and Power

Problem

10\,\text{kg}

crate is pushed along a horizontal floor by a constant force of

50\,\text{N}

. The coefficient of kinetic friction between the crate and the floor is

0.20

. Starting from rest, the crate moves

5\,\text{m}

. (a) Calculate the kinetic energy gained by the crate after it has moved

5\,\text{m}

. (b) Hence find its speed at that instant. (c) Determine the time taken to cover the

5\,\text{m}

distance.