Question

What is the power of an athlete weighing 960 N that runs through a flight of stair case in 2 mins? There are 100 stairs and each stair case has a length of 100 mm

PLS ANSWER

Answer 1

Power, P = 80 W

Explanation:

We have,

Weight of athlete is 960 N

It runs through a flight of stair case in 2 mins or 120 second

There are 100 stairs and each stair case has a length of 100 mm or 0.1 m

Power is given by :

`P=(Fd)/(t)`

d is distance

For 100 stairs,

So,

`P=(960* 100* 0.1)/(120)\\\\P=80\ W`

So, the power of an athlete is 80 watts.