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Homework Help: Calculating the loss in mechanical energy due to a collision

  1. Jun 25, 2012 #1
    Ballistic Pendulum system. Bullet weighs .00500kg and the wooden block it hits weighs 1.00kg. The increase in height is .05m. Using conservation of momentum and conservation of energy I have calculated the bullets speed at 199m/s. How can I calculate the loss in mechanical energy as a result of the collision?

    The answer is 98.5 Joules. I have no idea where to start.
  2. jcsd
  3. Jun 25, 2012 #2
    What is the energy before the collision? and after the collision?
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