A crate is pushed across a level warehouse floor at a constant velocity

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

Problem

15\,\text{kg}

crate is pushed across a level warehouse floor at a constant velocity. If the coefficient of kinetic friction between the crate and the floor is

\mu_k = 0.30

, what is the magnitude of the horizontal force required to keep the crate moving at that speed? (Take

g = 9.8\,\text{m/s}^2

.) (a)

29\,\text{N}

(b)

147\,\text{N}

(c)

44\,\text{N}

(d)

73.5\,\text{N}