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500 J of work is done in sliding a 4 kg ...

500 J of work is done in sliding a 4 kg block up along a rough inclined plane to a vertical height of 10 m slowly. The work done against friction is (g = 10m/`s^2`)

A

400 J

B

100 J

C

200 J

D

Zero

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The correct Answer is:
a
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