A 4. 860 kg block of wood rests on a steel desk. The coefficient of static frict

Question

A 4. 860 kg block of wood rests on a steel desk. The coefficient of static friction between the block and the desk is mu s = 0. 555 and the coefficient of kinetic friction mu k = 0. 255. At time t = 0, a force F= 16. 3 N is applied horizontally to the block. State the force of friction applied to the block by the table at the following times: insider the same situation, but this time the external force F is 32. 8 N. Again state the force of friction acting on the block at the following times:

Explanation / Answer

q1 at t=0 force=16.3N AT T>0 F=0N Q2. FORCE AT T=0 32.8N AT T>0 32.8-.255*4.86*10N

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