A crate moves with constant velocity on a horizontal floor under the action of four…
PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A crate moves with constant velocity on a horizontal floor under the action of four forces:
(i) a horizontal pulling force to the right,
(ii) kinetic friction acting to the left,
(iii) the normal reaction of the floor, and
(iv) the weight of the crate.
Identify for each force whether the work done during the displacement is positive, negative or zero.