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: Angular speed prob

  1. Oct 23, 2005 #1
    A flat uniform circular disk (radius = 1.90 m, mass = 260 kg) is initially stationary. The disk is free to rotate in the horizontal plane about a frictionless axis perpendicular to the center of the disk. A 69.0-kg person, standing 1.97 m from the axis, begins to run on the disk in a circular path and has a tangential speed of 3.10 m/s relative to the ground. Find the resulting angular speed (in rad/s) of the disk.

    dont understand
    please help
  2. jcsd
  3. Oct 23, 2005 #2
    Show me some work, and then ill help you. Or atleast convince yourself of the concept. I'd be happy to help, but i dont want to do it for you.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook