Question

How many hp or horsepower does it take to lift a 100kg up 30.0m in 20sec?

(1hp = 748W)

Answer 1

answered ... see Y!

Answer 2

P = F*d/t = Mg*d/t = 980 * 30/20 = 1470 J/s = 1470 Watts.

1470w./(746w/hp) = 1.97 hp.