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Power

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Question

the power of heart which beats 72 times in a minute is 1.2KW. CALCULATE THE WORK DONE BY THE HEART IN EVERY BEAT

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Solution

Time for 1 beat = 60 s /72 = 0.8333 s
Work = power x time
= 1200 W x 0.8333 s
= 1000 J.

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