Recent content by kinemath

  1. K

    Mass falling and pulling a cylinder without sliding

    The angular acceleration should be r instead of 2r
  2. K

    Conservation of Angular momentum problem

    Hmm... I don't think energy is conserved as it is an inelastic collision.
  3. K

    Conservation of Angular momentum problem

    How did you get l=h?
  4. K

    Conservation of Angular momentum problem

    is h the original height and l the final height?
  5. K

    Conservation of Angular momentum problem

    l is not equal to h
  6. K

    Angular Velocity and Acceleration graph

    For the first part it is the area under the graph. For the second part the angular acceleration is constant.
  7. K

    Conservation of Angular momentum problem

    Oh I get it thanks a lot. Is it because gravity causes the tangential force to change when the rod pivots which causes the angular acceleration to change?
  8. K

    Conservation of Angular momentum problem

    why isn't alpha constant?
  9. K

    A problem in rigid body dynamics

    I thought conservation of angular momentum cannot be applied since there is friction?
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