1. A block of mass M is pushed up an incline of slope 3/4 by a horizontal force equal to twice its weight. If the coefficient of kinetic friction between the block and the incline is u = 0.25, what is the acceleration of the block along the incline?
(A) g/5
(B) g/2
(C) 3g/4
(D) 4g/5
(E) g
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統計: 尚無統計資料
統計: 尚無統計資料