A pump draws water from a reservoir and sends it through a horizontal pipe with speed v. Find the relation between power of the pump and velocity of liquid.

Explanation

From work`-` energy theorem
`P=(KE("imparted to water"))/("time")`
`=(KE)/("volume of water")xx("volume of water")/("time")`
`=((1)/(2)rhov^(2))(Av)or Palphav^(3)`