Work Done
2014-03-13 6:22 pm
John weighs 60 kg and carries a bag that weighs 10 kg. He walked a distance of 0.5 km. Find the work done of John.
回答 (1)
2014-03-13 6:57 pm
✔ 最佳答案
It is zero.W = F·S
Now. direction of F is downward and S forward.
It gives W=|F||S|cos(90⁰) = 0
收錄日期: 2021-04-27 20:35:54
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