Question

If a person. of. mass. 50. carrying. a mass. of. 60 kg. up to. height. of. 20m. in. 60sec. . Find. the. power. of. person​

Answer 1

The power of person is 333.3 watt

Explanation:

The mass of man = 50 kg

The load on his head = 60 kg

The total mass = 50 + 60 = 110 kg

The height covered by this mass h = 20 m

The work done W = mass x acceleration due to gravity x height

Thus W = 110 x 10 x 20 = 22 x 10³ J

The power = Work/time

Thus power = $\frac{22x10^3}{60}$ watt = $\frac{1100}{3}$ W = 333.3 watt