A 4.320 kg block of wood rest on desk. The μs, between the block and the desk is μs = 0.455 and μk = 0.205. At time t = 0, a force F = 11.9 N is applied horizontally to the block. State the force of friction applied to the block by the table at t=0 and t>0.
Consider same situation, but this time the external force F is 23.9 N. Again state the force of friction acting on the block at t=0 and t>0