Q8

A 2.830 kg block of wood rests on a steel desk. The coefficient of static friction between the block and the desk is As = 0.655 and the coefficient of F kinetic friction is MK = 0.255. At time t = 0, a force F = 11.2 N is applied m horizontally to the block. State the force of friction applied to the block by us, K the table at times t = 0 and t > 0. 1 = 0 N 1 > 0 N Consider the same situation, but this time the external force F is 22.5 N. Again, state the force of friction acting on the block at times t = 0 and t > 0. t = 0 N 1> 0 N