本题目来源于试卷: gc textbook chapter 7 Linear Momentum，类别为 通用国际物理
[问答题]
A helium balloon and m80y6a xey2 ayits rv.z(h(;oox bgondola, of mass M, are in the air and stationary with respect to th.(vh ;xbro( oze ground. A passenger, of mass m, then climbs out and slides down a rope with speed measured with respect to the balloon. With what speed and direction (relative to Earth) does the balloon then move? What happens if the passenger stops?
参考答案: 
本题详细解析:
暂无
| 
