問題詳情

12. A ball of mass me is released from rest and acquires velocity of magnitude vB beforehitting the ground. The ratio of the kinetic energy the Earth (mass

) acquires to the kinetic cnergythe ball acquires ism:
(A) 0.
(B)


(C)


(D) 1.
(E)

參考答案

答案：C
難度：計算中-1
書單：沒有書單，新增