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Homework Help: Ballistic Cylinder

  1. Apr 1, 2010 #1
    1. The problem statement, all variables and given/known data
    A 15.0 g bullet is fired at 456.1 m/s into a solid cylinder of mass 21.1 kg and a radius 0.31 m. The cylinder is initially at rest and is mounted on fixed vertical axis that runs through it's center of mass.
    The line of motion of the bullet is perpendicular to the axle and at a distance 6.20 cm from the center. Find the angular velocity of the system after the bullet strikes and adheres to the surface of the cylinder.

    2. Relevant equations
    L=r x p

    3. The attempt at a solution
    I tried to first find L by r*p*cos(theta). Then I calculated I, which I calculate to be 1.01. Then I divided L by I but it did not work. Help?
  2. jcsd
  3. Apr 1, 2010 #2


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