A 2 kg block rests on a horizontal surface where the coefficient of kinetic friction…
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A 2 kg block rests on a horizontal surface where the coefficient of kinetic friction is 0.20. A constant horizontal force of 12 N is applied for the first 4 m, after which the force is removed. (Take g = 10 m s⁻².)
(i) Calculate the speed of the block just after it has moved 4 m.
(ii) After the force is withdrawn, how much further will the block travel before coming to rest?