A bucket of water weighing 10 kg is pulled up from a 20 m deep well by a rope weighing 1 kg/m length, then the work done is _____.

A bucket of water weighing 10 kg is pulled up from a 20 m deep well by

1.	A bucket of water weighing 10 kg is pulled up from a 20 m deep well by a rope weighing 1 kg/m length, then the work done is _____.
A.	200 kg-m
B.	400 kg-m
C.	500 kg-m
D.	600 kg-m
Answer» C. 500 kg-m

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A bucket of water weighing 10 kg is pulled up from a 20 m deep well by a rope weighing 1 kg/m length, then the work done is _____.

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