what horizontal force must be applied to the box to cause it to start sliding along the surface?

Question

A 12-kg box rest on a horizontal surface. The coefficient of static friction between the box and the surface is 0.30, and the coefficient of kinetic friction is 0.20.

Answer 1

To get the box to begin to move, the applied horizontal force must cancel the opposing force of static friction.

 

F ≥ μ_smg = (0.30)(12)(9.8) N = 35.28 N

 

F ≥ 35.28 N