问题标题:
英语翻译Pushachildinaswing,orrideaplanetaroundthesun,andyou’reusingNewton’ssecondlawofmotion,whichstatesthatwheneveryouwanttochangethespeedordirectionofsomething,youhavetoapplyanappropriateforce.
问题描述:
英语翻译
Pushachildinaswing,orrideaplanetaroundthesun,andyou’reusingNewton’ssecondlawofmotion,whichstatesthatwheneveryouwanttochangethespeedordirectionofsomething,youhavetoapplyanappropriateforce.
孙洪回答:
无论是推小孩荡秋千,还是随着行星围绕着太阳转,都涉及了牛顿第二运动定律.该定律的内容是:无论在何时,想要改变一个物体的速度或者是方向,你都必须用一定的力量.
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