Calculate the operating time of the fan if, with a motor power of 100 W, it produces 36 kJ of work.
| September 3, 2021 | education
Initial data: N (fan motor power value) = 100 W; A (the work done by the fan) = 36 kJ = 36 * 10 ^ 3 J.
The fan operating time can be expressed from the formula for calculating the mechanical power: N = A / t, whence t = A / N.
Let’s do the calculation:
t = 36 * 10 ^ 3/100 = 360 s (6 minutes).
Answer: The fan motor produces 36 kJ of work in 360 seconds (6 minutes).
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