Demonstrating kinematics and Newton's laws in a jump

Martin Kamela

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Demonstrating kinematics and Newton's laws in a jump

机译：快速展示运动学和牛顿定律

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When students begin the study of Newton's laws they are generally comfortable with static equilibrium type problems, but dynamic examples where forces are not constant are more challenging. The class exercise presented here helps students to develop an intuitive grasp of both the position–velocity–acceleration relation and the force–acceleration relation. Further analysis of the demonstration is used to verify the impulse–momentum relation and it can be used as a starting point for discussing energy issues in the jump.

机译：当学生开始研究牛顿定律时，他们通常会适应静态平衡类型的问题，但是对于力不是恒定的动态示例则更具挑战性。这里介绍的课堂练习有助于学生直观地理解位置-速度-加速度关系以及力-加速度关系。对演示的进一步分析可用于验证脉冲与动量的关系，并可将其用作讨论跳跃中能量问题的起点。

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《Physics Education》 |2007年第2期|共3页
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Martin Kamela;
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正文语种 eng
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Demonstrating kinematics and Newton's laws in a jump

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