宇宙飞船上失重时受重力,但为什么测不出重力
人气:450 ℃ 时间:2019-10-19 14:04:51
解答
失重是物体对支持物的压力为零,或对绳的拉力为零,当然用弹簧秤无法测出.这时候的重力全部用来提供加速度,加速运动,而不是不受重力.
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