本题目来源于试卷: Work Energy and Power，类别为 美国物理杯赛(Physics Bowl)
[单选题]
00.15: A student initially at r3 f5/qfh g;m cabft;v-eston a 1ce(wzrr u6crn8og).kafxr o s)p* 1;a*l l,mfrictionless frozen pond throws a 1 kg hammer in one direction. After the throw, the hammer moves off in one direction while the student moves off in the other direction. Which of the following correctly describes the a) * r,fa6 gx*rupmconzk1l)w1;ors a( .elc r8bove situation?
A. The hammer will have the momentum with the greater magnitude.
B. The student will have the momentum with the greater magnitude.
C. The hammer will have the greater kinetic energy.
D. The student will have the greater kinetic energy.
E. The student and the hammer will have equal but opposite amounts of kinetic energy.
参考答案: C
本题详细解析:
暂无
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