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An engine pumps out 40k.g of water per second. If water comes out with a velocity of 3 m/s, then what is the power of engine?



The Brainliest Answer!
Here ,
M= 40 kg
v= 3m/s
applying the formula of power 
P= \frac{work done}{time}
here work done is equal to the KE of the body i.e.
     =180 J
substituting the value of work done and time taken we get
P= \frac{180}{1}
P=180J/s or 180 W
1 5 1
We know that power=work/time
and work =enegy =kinetic energy=0.5*40*9=180 J
so power=180/1=180 W
0 0 0
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