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प्रश्न
The power output of an engine is 3kW. How much work does the engine do in 20 s?
उत्तर
Power output of the engine is,
= 3 kW
= 3000 W
Time, (t) = 20 s
Now, we can calculate the work done by the engine as:
Work done = (Power) (time)
So,
Work done = (3000) (20)
= 60 KJ
So, work done by the engine is 60 kJ.
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