問題詳情

39. A wheel of radius ? and moment of inertia I is mounted on a frictionless horizontal axle asshown in the figure. A light cord wrapped around the wheel supports an object of mass m. Whatis the linear acceleration of the object? (Gravitational acceleration is g)


(A)


(B)


(C)


(D)


(E)

參考答案

答案：A
難度：計算中-1
書單：沒有書單，新增