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Homework Help: Work and energy of acrobat

  1. Mar 17, 2010 #1
    1. The problem statement, all variables and given/known data
    An acrobat on skis starts from rest 50.0 m above the ground on a frictionless track and flies off the track at a 45.0° angle above the horizontal and at a height of 10.0 m. Disregard air resistance.

    a. What is the skier’s speed when leaving the
    track?

    b. What is the maximum height attained?


    2. Relevant equations
    kinetic energy=1/2 mass*speed^2
    potential energy

    3. The attempt at a solution
    somehow find the kinetic energy of the two height and change it to potential and then with the 45 angle
    really need to know how to do it for a quiz
     
  2. jcsd
  3. Mar 17, 2010 #2
    you gotta try it at least man.
     
  4. Mar 17, 2010 #3
    unless of course they let you using physics forums during your tests. do they do that nowadays?
     
  5. Mar 17, 2010 #4
    ok i did try i still dont get it
     
  6. Mar 19, 2010 #5
    never mind solve it
     
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