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

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

Answer Details

Power = $\frac{\text{force x distance}}{\text{time}}$

= 50 x 10 x 5 = 500W