Mechanical Advantage (id: 00dd3f55a)

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 frictionless horizontal surface, two bodizv8q l 1a ;sk+sr6gz(xes make ahead-on collisiux.k(m.j3 7sxu fkl qcwfg/1;on and stick together. Body 1 has a mass of 3.5 kg and initially moves to the right with speed 7.0 m/s. Body 2 initially is at rest. A graphjw1/ 7 3c fmuks.qfx ;(klugx. 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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