A block of mass M is being pushed along a rough, horizontal surface by an applie

Question

A block of mass M is being pushed along a rough, horizontal surface by an applied force as shown at right. The block moves along the positive x-direction at a constant speed. The coefficients of static and kinetic friction at the interface are mu s and mu k respectively. Which of the following statements about this situation are necessarily correct? The net force acting on the block is zero. . The magnitude of the force of friction acting on the block is mu k Mg. . The magnitude of the force of friction acting on the block is Facos theta. . The magnitude of the normal force acting on the block is Mg None p,q,& r only p & r only q & d only.

Explanation / Answer

C)p & r

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