200kg Water Moved in 1min by 600W Pump

[looi76]

Homework Statement

A pump with a power output of 600W raises water from a lake through a height of 3.0m and delivers it with a velocity of 6.0 ms^-1. what mass of water is removed from the lake in one minute?

Homework Equations

Kinetic Energy = 1/2*m*v²

The Attempt at a Solution

600 = 1/2*M*6.0²
M = 200kg

 

[temaire]

You can't substitute 600W for the kinetic energy, because energy is measured in joules, not watts. Try and use $$P=F*V_{ave}$$.