Question

A machine is able to lift 200 N of concrete slab vertically up to a height
of 30 m above the ground in 50 s. The average power of the machine is
A. 1.33 W B. 60 W C120 W D. 6000 W​

Answer 1

Answer:

C. 120W

Explanation:

P=W/t & W=F. ds

{where P=power W=work F=force ds=displacement & t=time}

P=200*30/50

P=120W