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    Archeet's Avatar
    Archeet Posts: 1, Reputation: 1
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    #1

    Jul 5, 2014, 09:53 PM
    A bullet of mass 10g is horizontally fired with a velocity 100m/s from a gun of mass
    A bullet of mass 10g is horizontally fired with a velocity 100m/s from a gun of mass 10 kg. With what linear momentum will the gun move backward?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    Jul 6, 2014, 04:58 AM
    Hint: think conservation of momentum. Prior to the bullet being fired, the system of bullet + gun has zero momentum. So after the bullet is fired the sum of momentum of bullet + gun must still be zero. Can you finish it from here?
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