Answer to Question #317275 in Physics for Sunday

Question #317275

A man of mass 50kg ascends a flight of stairs 5m high in 5 seconds.If acceleration due to gravity is 10m/second-2.The power expended is???

Expert's answer

The power

"P=\\frac{W}{t}=\\frac{mgh}{t}"

"P=\\frac{50*10*5}{5}=500\\:\\rm W"

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