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mrrabbitsir: 金币+5, 翻译EPI+1, ★★★很有帮助 2015-01-17 22:01:10

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3楼: Originally posted by mrrabbitsir at 2015-01-14 14:12:08
有这种力么～确定？
...

这里（https://www.physicsclassroom.com ... n-2/Types-of-Forces）有对力的类型（types of forces）的介绍，其中对spring force是这么说的：
The spring force is the force exerted by a compressed or stretched spring upon any object that is attached to it. An object that compresses or stretches a spring is always acted upon by a force that restores the object to its rest or equilibrium position. For most springs (specifically, for those that are said to obey "Hooke's Law"

, the magnitude of the force is directly proportional to the amount of stretch or compression of the spring.

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5楼2015-01-15 03:24:16

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