Question

A crane lifts a mass of 200 kg to a height of 10 min 10 second. The power of the crane is (g = 10 m/s2)
1-1 kW
2-2 kW
3-3 kW
4-4 kW​

Answer 1

Answer:

The power of the crane is 500W.

Explanation:

m=100 kg,

h=10 m,

t=20 s

g=10 m/s²

 

Power = mgh/t

           = 100 x 10 x 10/20

           = 10000/20 = 500W