A man of mass 50kg ascends a flight of stairs 5m high in 5 seconds. If acceleration due to gravity is 10ms-2, the power expended is
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Correct Answer: Option E
Explanation:
Power = \(\frac{\text{force x distance}}{\text{time}}\)
= 50 x 10 x 5 = 500W
Power = \(\frac{\text{force x distance}}{\text{time}}\)
= 50 x 10 x 5 = 500W