A block initially at rest on a rough horizontal floor ( , ) is pulled by a horizontal…
PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A 4kg block initially at rest on a rough horizontal floor (μs=0.35, μk=0.30) is pulled by a horizontal force of 25N that acts for 3s and is then removed.
(i) Does the block begin to move while the force is acting?
(ii) Determine the speed of the block at the instant the force is withdrawn.
(iii) How much additional distance does the block travel before coming to rest after the force is removed?