一质量为52 kg的人受到的重力大小为_______N,方向______.如果此人在g′

一质量为52 kg的人受到的重力大小为_______N,方向______.如果此人在g′=1.63 N/kg的月球上,他的重力变为______N.

答案

509.6  竖直向下  84.76

解析:在地球表面人受的重力G=mg=52×9.8 N=509.6 N,方向竖直向下.当他在月球上时,重力大小G′=mg′=52×1.63 N=84.76 N.


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