If work is done at a faster rate, then
No power is required to do work
power is more
Infinite power is required
power is less
Power = work/ time.
If work is done in a shorter span of time, then power is more.
A pump is used to lift 500 kg of water from a depth of 80 m in 10 s.Calculate:
(a) the work done by the pump,
(b) the power at which the pump works, and
(c) the power rating of the pump if its efficiency is 40%.