本题目来源于试卷: Physics Unit7: Linear Momentum，类别为 通用国际物理
[单选题]
A very light object moving with speed v collides head-on with a very heavy ob ytd zgr9.i 9ce9l:ie1jecee.d9i9ly i1 :g 9crztfbh 4kz - b; :jpph185ypl+qtnt at rest, in a frictionless environment. The collision is almost perfectly e+t; f14 qbpy n:8pzjbpklhh5-lastic. The speed of the heavy object after the collision is
A. slightly greater than v.
B. equal to v.
C. slightly less than v.
D. much less than v.
参考答案: D
本题详细解析:
暂无
| 
