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!

Finding radial acceleration

  1. Nov 3, 2004 #1
    Please help! I'm having trouble understanding this rotation problem.
    At a time 2.60 s, a point on the rim of a wheel with a radius of 0.240 m has a tangential speed of 50.0 m/s. as the wheel slows down with a tangential acceleration of constant magnitude 10.7m/s^2 . At what time will the radial acceleration equal 9.810 m/s^2?

    I tried using the equation omega final = omega initial + alpha * t.
    * I found omega final by 9.81=omega^2*r (probably wrong)
    * I converted the given speed to rad/s and used it for omega inital
    *Then I used the square root of the two accelerations squared for alpha (also seems wrong, but I can't figure out anything else)
    *Then I solved for t and added the given t to it to find a time, but its not right.

    Thanks for your help :)
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you help with the solution or looking for help too?
Draft saved Draft deleted

Similar Discussions: Finding radial acceleration