1. Not finding help here? Sign up for a free 30min 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!

Conservation Of Mechanical Energy PROBLEM

  1. Nov 21, 2008 #1
    1. The problem statement, all variables and given/known data

    A novice skier, starting from rest, slides down a frictionless 35.00 incline whose vertical height is 185 m.How fast is she going when she reaches the bottom?


    2. Relevant equations

    Need the rest of the solution.

    3. The attempt at a solution

    PICTURE SCAN: [​IMG]
    1. The problem statement, all variables and given/known data



    I Need to check if this is correct formula and need to do the rest by someone who knows. Thanks.
     
  2. jcsd
  3. Nov 21, 2008 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi CoffinSupply! Welcome to PF! :smile:
    Yes, that's right … mg(185) = (1/2)mvf2

    so vf = … ? :smile:
     
  4. Nov 21, 2008 #3
    Re: Welcome to PF!



    Thanks, PF a great place!

    vf =49.5 m/s ?
     
  5. Nov 21, 2008 #4

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    I don't think so …

    how did you get that?
     
  6. Nov 21, 2008 #5
    crossed out like terms. But how would you do it?
     
  7. Nov 21, 2008 #6
    Can't you get the length of the slope using trigs and then then acceleration is g*sin35?
     
  8. Nov 21, 2008 #7
    Can I get a complete solution to the problem done , if possible?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?