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A 70 kg man leaps vertically into the ai...

A 70 kg man leaps vertically into the air from a croushing position. To take the leap the man pushes the ground with a constant force F to raise himself. The center of gravity rises by `0.5 m` before he leaps. After the leap the c.g. rises by another 1m. the maximum power dilivered by the muscles is (Take `g= 10 ms^(-2)`)

A

`6.26 xx 10^(3)` watts at the start

B

`6.26 xx 10^(3)` Watts at take off

C

`6.26 xx 10^(4)` watts at the start

D

`6.26 xx 10^(4)` watts at take off

Text Solution

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The correct Answer is:
B
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