Reply
Fri 28 Oct, 2011 09:16 am
A pump raises 50 litres of water through a height of 25m in 5s.calculate the power.take density=1000kg/m3?
@ujjwal,
Power (in watts)= Work/Time=Force x Distance/Time =mgh/t =vdgh/t
(When calculating m by m=vd remember 1 litre=.001 cu m)