A student of mass 60kg runs up a height of 7.2m in 10 seconds.What is the power expended by the student? (G=10/s2
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Answer:4320000 watt or 4320 k watt
Explanation:60kg=60000g and 7.2m=720cm
we know
Power=work done/ time taken to do the work
Here work is done against gravity so
W=m×g×h
=6000×10×720
=43200000J
Therefore
Power=43200000/10
=4320000watt
=4320 kwatt
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