Question

what horsepower engine is required to lift 20 quintal of coil per minute from a mine 50 m deep (g=10 m/s)

Answer 1

20 quital to kg

1quintal =100 kg

20 quintal = 2000kg

Mass = 2000kg

Time is per minute so 60 sec

T=60 sec

Height =50 m

So power = w/t

W=mgh

W= 50*2000*10

W=1000000 j

Covert to horsepower