Question

(b) A car of mass 2000 kg is lifted up a distance of 30 m by a crane in 2 minutes. What

is the power supplied by the crane? (g = 9.8 m s

-2)​

Answer 1

Answer:

Explanation:

Mass of the car = 2000 kg

Height at which car is lifted = 30 m

Power supplied by crane is = P = mgh/t

                                   = 2000∗9.8∗30

                                   = 4900W