A block rests on a horizontal surface

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics

Problem

1\,\text{kg}

block rests on a horizontal surface. It is pushed by a constant horizontal force of

15\,\text{N}

through

10\,\text{m}

starting from rest. What should be the coefficient of kinetic friction so that the speed of the block at the end of

10\,\text{m}

does not exceed

12\,\text{m\,s}^{-1}

? (Take

g=10\,\text{m\,s}^{-2}

.) (a)

0.82

(b)

0.40

(c)

0.78

(d)

0.72