an electric pump has 2kW power. how much water will the pump lift every minute to a height of 10 m
vaishnavi656:
but gravity measure in 9.8m
Answers
Answered by
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power = work/time
or
P = W/t
so
2kW => 2k joule work in every second
potential change to lift height 'h' for a body of mass 'm' under gravitational force
is = mgh
so
mgh/t = P
t = 60sec
h = 10m
P = 2kW
g = 10m/s²
so
m = Pt/gh
m = 2000×60÷(10×10)
m = 1200kg
so pump lift 1200kg of water in every minute
hope it helps you
@di
or
P = W/t
so
2kW => 2k joule work in every second
potential change to lift height 'h' for a body of mass 'm' under gravitational force
is = mgh
so
mgh/t = P
t = 60sec
h = 10m
P = 2kW
g = 10m/s²
so
m = Pt/gh
m = 2000×60÷(10×10)
m = 1200kg
so pump lift 1200kg of water in every minute
hope it helps you
@di
to make it easy to solve
no it is not given but gravity measure in 9.8m
we use both
but generally 10m/s² is better option to make easy solution
but if the answer isn't matching
then use g=9.8m/s²
otherwise g=10m/s² is ok
ok thanks
what is the answer?
that ans is1224kg
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