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!

Gymnast homework problem

  1. Mar 19, 2012 #1
    1. The problem statement, all variables and given/known data

    A gymnast with mass m1 = 48 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 119 kg and length L = 5 m. Each support is 1/3 of the way from each end. Initially the gymnast stands at the left end of the beam.
    Now the gymnast (not holding any additional mass) walks directly above the right support.
    Q1:What is the force the left support exerts on the beam?
    Q2:What is the force the right support exerts on the beam?

    2. Relevant equations
    [itex]\Sigma[/itex]F=0
    τ=0


    3. The attempt at a solution

    For q1 I have used m1*g+m2*g - 3(m1+m2/2)*g is this correct?
    For q2 is 3(m1+m2/2)*g is this correct?
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Similar Discussions: Gymnast homework problem
  1. Gymnast equilibrium (Replies: 2)

  2. Homework problems (Replies: 1)

  3. Gymnast force problem (Replies: 1)

Loading...