A block of mass slides a distance on a horizontal surface having coefficient of…

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

Problem

A block of mass

m

slides a distance

s

on a horizontal surface having coefficient of kinetic friction

\mu_k

. What is the work done by the frictional force on the block? (a)

+\mu_k m g s

(b)

-\dfrac{1}{2}\mu_k m g s

(c)

-\mu_k m g s

(d)

-m g s