Question

Find the power of a 60 kg man who can climb up the a height of 10 m in half a minute

Answer 1

Answer:m=60kg

S=10m

t=30s

g=9.8

F=mg

=60×9.8

=588N

W=Fs

=588×10

=5880J

P=W/t

=5880/30

=196W

Explanation:

Answer 2

Answer:

Power of the man, P = 196 watts

Explanation:

Mass of the man, m = 60 kg

Height, h = 10 m

Time, t = half minute = 30 seconds

We need to find the power of the man. It is given by :

$P=\dfrac{W}{t}$

W = work done by the man

$P=\dfrac{mg\times h}{t}$

$P=\dfrac{60\times 9.8\times 10}{30}$

P = 196 watts

So, the power of the man is 196 watts. Hence, this is the required solution.