本题目来源于试卷: Mechanical Advantage，类别为 美国物理杯赛(Physics Bowl)
[单选题]
15.28: On a fricti qrp y58sob g3dm1o*4 e-*f7tk3f zotgmjl d9: onless br8i h-nod(k+x xz.qmhv72lf 3f6(zt horizontal surface, two bodies make ahead-on collision and stick together. Body 1 has a mas v.xd+bf( 3ihh2 nrxo qfzz 6k-m8l(7ts of 3.5 kg and initially moves to the right with speed 7.0 m/s. Body 2 initially is at rest. A graph of the force exerted onto Body 2 from Body 1 during the collision is shown.
How much kinetic energy was transformed to other kinds of energy from the collision?
A. 67.1 J
B. 52.6 J
C. 42.9 J
D. 38.2 J
E. 30.0 J
参考答案: B
本题详细解析:
暂无
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