A man weighing 500 N carried a load of 100 N up flight of stairs 4 m high in 5 second. what is power
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Total weight = 500N+100N = 600N
Height = 4m
Time = 5s
Power = work done / time taken
= (force * displacement) / time taken. ( because w = f * s)
= 600 *4/5
= 2400/5
= 480 watt
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