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!

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
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Work and energy of acrobat
  1. Energy and Work (Replies: 1)

  2. Calculate the lift work? (Replies: 15)

Loading...