During hard work, the heart contracts to 150 beats per minute. With each contraction, the heart performs work equal

During hard work, the heart contracts to 150 beats per minute. With each contraction, the heart performs work equal to 2 kJ. Determine the power developed by the heart.

To determine the value of the power developed by the heart, we use the formula: N = A / t = A1 * n / t.
The values of the variables: A – the work of the heart with each contraction (A = 2 kJ = 2 * 10 ^ 3 J); n is the number of contractions performed (n = 150 beats); t – the duration of the heart (t = 1 min = 60 s).
Calculation: N = A1 * n / t = 2 * 10 ^ 3 * 150/60 = 5 * 10 ^ 3 W.
Answer: The power of the heart, according to the calculation, is 5 kW.