Question

The work done by the heart is 1 J per beat.
Calculate the power of the heart if it beats
72 times in 1 minute.

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Answer 1

Answer:

Given : Number of beats in 1 minute = 72·

Number of beats per second = 72/60 = 1.2

Power of heart = work done per second= work done per beat × number of beats in 1 second= 1 J x 1.2 /s= 1.2 J /s (or 1.2 W)

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