A person is holding 5 kg weight in 1 m below the zero-potential plane for 30 s. What work was done
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A person is holding 5 kg weight in 1 m below the zero-potential plane for 30 s. What work was done

[From: ] [author: ] [Date: 11-05-03] [Hit: ]
......
-5 J

0 J

150 J

150 W

-
W=d*F

d=0
So no work was done.
1
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