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Physics help

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A 300 g bird flying along at 6.4 m/s sees a 10 g insect heading straight toward it with a speed of 34 m/s (as measured by an observer on the ground, not by the bird). The bird opens its mouth wide and enjoys a nice lunch.

What is the bird's speed immediately after swallowing?

I cant figure this out!

  • Physics help -

    Conservation of momentum:

    mv+MV=(m+M)Vf

    solve for Vf. Note that v, and V are opposite directions.

  • Physics help -

    Awesome thanks a lot!

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