A crate of mass 25 kg rests on a horizontal warehouse floor
PHYSICS · Multi-part · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics
Problem
A crate of mass 25 kg rests on a horizontal warehouse floor. Worker A pushes the crate eastward with a force of 150 N, while Worker B pulls it westward with a force of 60 N. The coefficient of kinetic friction between the crate and the floor is 0.30.
(a) Calculate the magnitude and direction of the resulting acceleration of the crate.
(b) Keeping the two applied forces unchanged, determine the value of the coefficient of kinetic friction that would make the crate move with zero acceleration.