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 e8v0j.wyot,poqs94cng hj t sw ;+18t hori j7evexl 2iiw o:n/--v9qr o( la x(zg,zontal 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 b ( n 2x9jiogvxv( ,-oz eirew/q -al:l7lock 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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