A body of mass 22 kg has to be displaced 3m . If frictional force is 16 N,find th work done.?
回答 (2)
2015-09-24 10:37 am
✔ 最佳答案
Draw a figure!The gravital force 22g and the normal force 22g don't act in the moving direction.
Work done W = F* d
W = 16*3 = 48 Nm (J)
2015-09-24 4:28 pm
work = F*d = 16 N*3 m = 48 Nm ..joule
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