英语翻译if we know that a force of 4N acts on an object while it
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英语翻译
if we know that a force of 4N acts on an object while it moves 2 meters,can we calculate how much work was done with no other information?explain.
如果可以的话就顺便帮我做做~我会从灵魂深处感谢您的!
if we know that a force of 4N acts on an object while it moves 2 meters,can we calculate how much work was done with no other information?explain.
如果可以的话就顺便帮我做做~我会从灵魂深处感谢您的!
如果我们知道一个力作用在一个物体上并且使它运动2米,在没有其他信息下我们能否计算出到底做了多少功?不可以,因为不知道力的方向和物体的运动方向之间的关系.
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