Question

a body of mass 12kg runs up a set of total height 15m in 30 seconds calculate the power expended (g=m10/s)​

Answer 1

Explanation:

W = mgh

W = 12 × 10 × 15

W = 180 × 10

W = 1800 J

Power (P) = W/t

P = 1800/30

P = 180/3 = 60 watt

Answer 2

Power = Energy/time

here, power = $\frac{Change in energy or work done}{time taken}$

here,

change in energy or work done = mgh

=12kg x 10m/s² x 15m

= 1800 Joule

Now, $Power = \frac{1800J}{30s}$

therefore, Power = 60 Watts

there you go fam

answered by $\sqrt{Adul$