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Question
Each time the heart beats it requires 5 J of energy. If it has a power of 6 Watts, then how many times it beats in one minute
Each time the heart beats it requires 5 J of energy. If it has a power of 6 Watts, then how many times it beats in one minute
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Solution
The correct option is B 72
Let the number be n.
Energy required by the heart in 1 minute = 5*n J
Energy required by the heart in 1 minute = Power*time = 6*60 J
=> 5*n = 6*60
n = 6*12 = 72 times
72
Let the number be n.
Energy required by the heart in 1 minute = 5*n J
Energy required by the heart in 1 minute = Power*time = 6*60 J
=> 5*n = 6*60
n = 6*12 = 72 times
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