Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Easy homework question

  1. Jan 24, 2005 #1
    Killer whales at Sea World routinely jump 6.6 m above the water. What is their speed as they leave the water to achieve this?

    I dont know what to do.
    Thanks in advance to anyone who posts
  2. jcsd
  3. Jan 24, 2005 #2
    use the equation
    [tex] v^2 = u^2 + 2 a s [/tex]
    look up your textbook if you have no idea what is this formulas about.....
  4. Feb 23, 2005 #3
    From launch to when it reaches the top of its motion, (V2)=0 m/s.
    So: (V2)^2=(V1)^2 + 2 (acc.) (dist.)
    0 = (V1)^2 + 2*(-9.8)*(6.6)
    (V1) = 11.37 m/s
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook