70 kg man on earth. If earth gravity is doubled what is his weight?
回答 (3)
2017-09-13 2:39 am
✔ 最佳答案
W1 = m*gW2 = m*2g
W2/W1 = m*2*g/(m*g) = 2
W2 = 2W1
2017-09-13 12:17 am
When gravity is double, g = 2 × 9.8 m/s² = 19.6 m/s²
Then, the weight = m g = 70 × 19.60 N = 1372 N = 1400 N (to 2 sig. fig.)
Then, the weight = m g = 70 × 19.60 N = 1372 N = 1400 N (to 2 sig. fig.)
2017-09-13 12:15 am
His weight would be: 1373 N
His mass would still be 70 kg
His mass would still be 70 kg
收錄日期: 2021-04-18 17:48:41
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https://hk.answers.yahoo.com/question/index?qid=20170912161331AAbmwGA