本题目来源于试卷: 2-dim collision，类别为 美国物理杯赛(Physics Bowl)
[单选题]
11.39: An object with mass M movesk6x. c-e y) v.iun5uxx due East on a frict-gknqlquad2,l 2 4*jk ionless horizontal surface with a speed of V. A second object of mass M/2 has a speed of 3V. The two objects collide and stick j*n2-2,l qkqg4 kdau ltogether. If the objects are moving due South after the collision, with what speed are they moving?
A. $\frac{5}{3}v$
B. $\frac{1}{3}v$
C. $\frac{\sqrt{5}}{3}v$
D. $\frac{4\sqrt{2}}{3}v$
E. $\frac{\sqrt{33}}{3}v$
参考答案: C
本题详细解析:
暂无
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