Question

A 60kg man runs up a flight of stairs in 5 seconds.The vertical height of stairs is 10m.Calculate the power of the man?

Answer 1

Answer:

power=1200

Explanation:

Given:

m=60kg

t=5s

h=10m

Find:

power=?

Solution:

power=work/time

since work done equals potential energy in this case, therefore

W=mgh

W=60*10*10

w=6000j

Now,

P=W/T

p=6000/5

p=1200j/s.