本题目来源于试卷: Collision and momentum conservation，类别为 美国物理杯赛(Physics Bowl)
[单选题]
96.12: Two football pl p dfzh58srikth rs snc +:xl/f1:b6:7ay lc 3,w)oz,n-l/6ycz6 2 ezcwd dfa)ncs)6livers with mass 75 kg and 100 kg run directly toward each other with speeds 6.0 m/s and 8.0 m/s respectively. Il63c6)do e,wls-)/z ,iwcz zd) fnvclc6an2y f they grab each other as they collide, the combined speed of the two players just after the collision would be:
A. 2.0 m/s
B. 3.4 m/s
C. 4.6 m/s
D. 7.1 m/s
E. 8.0 m/s
参考答案: A
本题详细解析:
暂无
| 
