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Homework Help: Bullet and Blocks

  1. Oct 26, 2009 #1
    1. The problem statement, all variables and given/known data
    A bullet with a mass of 6.30 g is fired horizontally at two blocks resting on a smooth and frictionless table top as shown in the Figure. The bullet passes through the first 1.95 kg block, and embeds itself in a second 2.00 kg block. Speeds v1 = 2.50 m/s and v2 = 3.40 m/s, are thereby imparted on the blocks. The mass removed from the first block by the bullet can be neglected.


    (a) Find the speed of the bullet immediately after emerging from the first block.

    (b) Find the initial speed of the bullet.

    2. Relevant equations

    3. The attempt at a solution

    Not sure how to even start on this one. Any help will be appreciated. Thanks.
    Last edited by a moderator: Apr 24, 2017
  2. jcsd
  3. Oct 26, 2009 #2


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    Staff Emeritus
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    You will have to consider the conservation of momentum.
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