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]
11.37: Two blocks sit on a horizo dasy 1t0:+:cirp wlal ( 5hzl4nt g2bhfru(r3p) aydx km)z36fk1.v ur 4al frictionless surface connected to an ideal spring. Initially everything is at rest and there is a string compressing the mass-spring system from equilibrium. At sometime after the string is cut, the block of mass 2M reaches its maximum kinetic energy K. What maximum kinetic energy does the block of mass M attain in 6xr k)31rpa u(f)23fm4h .yvd kgrbuz terms of K?
A. $k/4$
B. $k/2$
C. $k$
D. $2k$
E. $4k$
参考答案: D
本题详细解析:
暂无
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