Question

An electric motor can lift a weight of 2000N through a height of 10m in 20s. What is the power of the motor?

Answer 1

work done = force × displacement
=2000 ×10 =20000 joule
so
power = work done /time
20000/20 = 1000 watt ans..

Answer 2

we know that,
work  = force × displacement
=2000 ×10 =20000 joule
we also know,
power = work done /time
20000/20 = 1000