1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
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?
    ____m/s

    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