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Grade 9 Test on Mechanics 20241217 (id: b63512111)

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admin 发表于 2024-2-6 02:21:25 | 显示全部楼层 |阅读模式
[单选题]
A truck weighs twice asbob e6:b.yye-oi t/j9 a k2tb0 much as a car, an/z .s7wqqw,/2iw jeh,2tfv spd is moving at twice the speed of the car. Which statement is true about the truck's kinetic energy compz.qvj 2tsesh/wf i /7p2ww,q,ared to that of the car?

A. All that can be said is that the truck has more kinetic energy.
B. The truck has twice the kinetic energy of the car.
C. The truck has 4 times the kinetic energy of the car.
D. The truck has 8 times the kinetic energy of the car.


参考答案:  D


本题详细解析: 暂无

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