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: A bead slides on a circular wire

  1. Jan 17, 2012 #1
    1. The problem statement, all variables and given/known data
    A bead slides on a smooth circular wire of radius b which lies in a vertical plane. The bead starts from rest at a point that is level with the center of the hoop.
    Find the time it takes for the bead to slide to the bottom of the hoop.

    The attempt at a solution
    at t=0
    U=mgb, KE=0

    at the bottom
    U=0, KE=mv2/2, v=(2bg)1/2
  2. jcsd
  3. Jan 18, 2012 #2
    What about the time?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook