問題詳情

23. A cart of mass m, traveling on a horizontal air track with speed v, collides with a stationary cartof mass 2m. The carts stick together. The impulse exerted by one cart on the other is:
(A) 0
(B) 2mv/3
(C) 3mv/2
(D) 2mv

參考答案

答案:B
難度:非常困難0
統計:A(0),B(0),C(0),D(1),E(0)

內容推薦

內容推薦