Question

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

Answer 1

-12

Step-by-step explanation:

Answer 2

`P = (W)/(t) = (mgh)/(t) = (50*10*5)/(5) = 500W`

So therefore the answer is, 500W