Question

calculate the power of a pump which lifts 1000kg of a water through a vertical height of 2meters in 10seconds (assume g=10ms

Answer 1

Take into account that the power is the wrok done in a interval of time:

P = W/t

In this case, the work W is given by:

W = m*g*h = (1000kg)(10m/s^2)(2m)

W = 20000J

Then, the power is:

P = 20000J/10s

P = 2000W

Hence, the power of the pump is 2000 watts