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: Work and Energy problem, please help

  1. Nov 3, 2005 #1
    Tarzan and Jane, whose total mass is 140.0 kg, start their swing on a 6.0 m long vine when the vine is at an angle of 30.0° with the horizontal. At the bottom of the arc, Jane, whose mass is 50.0 kg, releases the vine. What is the maximum height at which Tarzan can land on a branch after his swing continues?

    I have tried to get this problem but i just seem to be pausing because i cant find the right information/formula to proceed.
    All help appreciated :smile:
     
  2. jcsd
  3. Nov 3, 2005 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Energy is conserved. The energy of "Tarzan + Jane" at the starting point equals the energy they have at the bottom of the arc. When Jane lets go, Tarzan is left alone. But energy is still conserved. (You may find the problem easier than it looks. Try to do things with symbols; don't rush to plug in numbers.)
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook