How much time will a pump of 1 kw power take to lift 500 litre of water to a height of 40 m ? ( given that density of water is 1kg / litre g = 10 m/s square )
Answers
Answered by
54
The potential energy to raise the water
= mass of water (500kg, 1 liter of water is 1 kg) x gravitational pull(10m/s) x height (40m)
500kg x 10m/s x 40m= 200000 joules (work, potential energy)
.Power = work / time
Therefore time = work 200000joules/power 1kw= 1000joules/s)
time = 200000joules/1000joulse/s
= 200000/1000 s
= 200 s
= mass of water (500kg, 1 liter of water is 1 kg) x gravitational pull(10m/s) x height (40m)
500kg x 10m/s x 40m= 200000 joules (work, potential energy)
.Power = work / time
Therefore time = work 200000joules/power 1kw= 1000joules/s)
time = 200000joules/1000joulse/s
= 200000/1000 s
= 200 s
Answered by
1
Answer:
here is your answer
please Mark me brainlist
Attachments:
Similar questions