The 10-kg block is attached to link AB and rests on a moving belt. Knowing that s

The 10-kg block is attached to link AB and rests on a moving belt. Knowing that μs = 0.30 and μk = 0.25 and neglecting the weight of the link, determine the magnitude of the horizontal force P that should be applied to the belt to maintain its motion

(a) To the left as shown,

(b) To the right.

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10 kg 35°