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Space Time & Motion A.3 Work Energy and Power (id: c50f690cc)

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admin 发表于 2024-2-8 22:13:10 | 显示全部楼层 |阅读模式
本题目来源于试卷: Space Time & Motion A.3 Work Energy and Power,类别为 IB物理学

[填空题]
1.A ball of mass $0.20\,kg$ moving on a frictionless horizontal plane collides elastically with a vertical wall.


The variation of the force $F$ acting on the ball during the collision with time $t$ is shown on the graph below.

The speed of the ball just before the impact is $5.0\,m\,s^{-1}$. Calculate the maximum force exerted on the wall by the ball.  $N$
2.The wall is covered with a coating that causes an inelastic collision. The ball hits the wall with the same initial speed and bounces back with a speed of $3.0\,m\,s^{-1}$.
1.Explain, by considering the moments just before and after the collision, how the principle of conservation of energy applies to the collision.
2.Calculate the loss of the energy    $J$ of the ball during the collision.
3.During this collision, the ball undergoes a change in momentum. the the law of conservation of momentum    in this situation.




参考答案:
空格1: 400空格2: 1.6空格3: doesn’t apply


本题详细解析:

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