Asked by suvee

A 4.240 kg block of wood rests on a steel desk. The coefficient of static friction between the block and the desk is μs = 0.455 and the coefficient of kinetic friction is μk = 0.255. At time t = 0, a force F = 11.6 N is applied horizontally to the block. State the force of friction applied to the block by the table at the following times:
Answered by bobpursley
before moving: mg* μs
after moving: mg*μk