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!

Spinning the wheels: intro to angular momentum

  1. Oct 18, 2007 #1
    An object has rotational inertia I. The object, initially at rest, begins to rotate with a constant angular acceleration of magnitude alpha. What is the magnitude of the angular momentum L of the object after time t?
    ___

    So I know that I have to find angular velocity and use the equation
    L=angular momentum= I(omega) ... so how do i find this omega in terms of alpha and t??

    I know that torque = r*F and L = r*momentum ... and F=m(alpha)(r) ??? ..
     
  2. jcsd
  3. Oct 18, 2007 #2

    Doc Al

    User Avatar

    Staff: Mentor

    If it were a linear velocity problem, could you find the speed given acceleration and time? Use similar thinking.
     
  4. Oct 18, 2007 #3
    ah that's too easy .. thanks lots:)
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Spinning the wheels: intro to angular momentum
Loading...