問題詳情
2. A force acting on an object moving along the x axis is given by Fx = (16x - 3.0x2) N, where x is in m. How much work is done by this force as the object moves from x = -1 m to x =+2 m?
(A) +40J,
(B) +12 J,
(C)+15J,
(D) +42 J,
(E)-28 J.
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增