a man of 60kg gains 1000 cal of heat by eating 5 mangoes his efficiency is28% to what height height he can jump by using this energy
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mass, m=60 kg
energy gained=1000 cal
we know that,1 cal=4.2 J
1000 cal=4200 J
So, energy gained=4200 J
Efficiency=28%
Energy output=mgh=28% of 4200 J
28/100×4200=60×9.8×h
h=28×42/60×9.8h=2 m
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