PH-2462
Power
Physics · Secondary 4 · Medium · Power
A 12 kg suitcase is lifted vertically from the floor to a shelf 1.5 m high in 3.0 s. Take gravitational field strength as 10 N/kg. What is the average power developed by the person?
- 40 W
- 50 W
- 60 W
- 90 W
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