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 players with mass 75 kgy*,8 e tya ipv*e:jvuou5 pgx;gr e-;3 and 100 kg 6ccnc stbxfc*0k(dgk) x;k;; run directly toward each other with speeds 6.0 m/s and 8.0 m/s respectively. If c0cf*;tnk c6sk cg)k (x xb;;dthey 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
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