Water falling = how much power?

  1. Water flows over a section of a waterfall at the rate of 3.2 104 kg/s and falls 33 m. How much power is generated by the falling water?
    watts

    i tried to use the power equation but im just not sure how the numbers relate.
    help please?
     
  2. jcsd
  3. LowlyPion

    LowlyPion 5,338
    Homework Helper

    You need to calculate the rate of potential energy delivery which is m*g*h/sec.
     
  4. use energy:

    E[tex]_{gravitational}[/tex] before = E[tex]_{kinetic}[/tex] after

    The gravitational energy of the water is turned into kinetic energy

    the amount of power generated is the energy per second.
     
  5. thanks guys
     
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