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Question

A load of 100 kg is pulled up by 5 m. Calculate the work done. Take g=9.8 ms2


A

5000 J

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B

4900 J

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C

4800 J

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D

4700 J

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Solution

The correct option is B

4900 J


Given, the mass of the object m=100 kg, height h=5 m and g=9.8 ms2.

We know work done W=mgh

So, W=100×9.8×5=4900 J


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