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 ho 3f+ ifqzzxzhkzu.i 6-9j,s)da. p b5 grizon ,nrxox7(6 57ot)xyo lzez,b jblk.7utal frictionless surface connected to an ideal spring. Initially everything is at rest and there is a string compressing the mass-spring system from equilibri .njbortu 7y,zx( l 7o6l,b5 7)x zokxeum. 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 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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