Question

Whhat is thw power of pump which talks 10 sec to lift 200 kg of water to water to situated at a heigh of 20 m

Answer 1

P=Work*Time

Work=Energy

Energy=mgh

Here m=200kg

g=9.8m/sec^2

h=20m

W=200*9.8*20

W=400*98

W=39200J

P=Work*Time

P=39200*10

P=392000 Watt

OR

P=392000/1000

P=392KWh