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Homework Help: Mosquito being charged by dinosaur

  1. Oct 19, 2009 #1
    1. The problem statement, all variables and given/known data

    A small mosquito is hovering in the air when a fast and massive dinosaur charges right into it with a speed of 2.62 m/s. If the collision is elastic what is the speed of the mosquito when it bounces off of the dinosaur.

    2. Relevant equations

    momentum equation

    3. The attempt at a solution

    Well since the don't specify the masses I just assume a tiny mass being hit by a massive one. The horizontal speed of the mosquito is 0 and the speed of the dinosaur is 2.62 m/s. I thought it would just be the same speed of the dinosaur (or slightlyyy larger) but this is wrong. Can someone please help?

    Thank you very much
  2. jcsd
  3. Oct 20, 2009 #2
    what equations did you use?
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