How long does it take for a 250 W motor to work 25 kJ?
| April 12, 2021 | education
Task data: N (power of a given motor) = 250 W; A (the work that the engine must do) = 25 kJ (25 * 10 ^ 3 J).
The duration of operation of a given engine can be determined by the formula: t = A / N.
Calculation: t = 25 * 10 ^ 3/250 = 100 s.
Answer: To do a work of 25 kJ, a given motor must run for 100 seconds.
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