Which of the following gives the magnitude of the kinetic friction force acting on a…

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

Problem

Which of the following gives the magnitude of the kinetic friction force acting on a block of mass

m

that slides on a horizontal surface with coefficient of kinetic friction

\mu_k

? (a)

\mu_k^{2} m g

(b)

\dfrac{m g}{\mu_k}

(c)

\mu_k m g

(d)

m g