A warehouse worker pushes a crate across a level concrete floor with a constant…
PHYSICS · Multi-part · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics
Problem
A warehouse worker pushes a 35kg crate across a level concrete floor with a constant horizontal force. The coefficient of kinetic friction between the crate and the floor is 0.28. The crate moves with constant velocity.
(a) Calculate the magnitude of the horizontal force the worker must exert on the crate.
(b) The worker suddenly stops pushing. Determine the magnitude of the crate’s acceleration immediately after the pushing force is removed and state its direction relative to the crate’s motion.