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    Prathamesh redi's Avatar
    Prathamesh redi Posts: 1, Reputation: 1
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    Jul 18, 2016, 08:14 AM
    Law of conservation of linear momentum
    A bullet of 60 gm is fired using a rifle of mass 12 kg. Rifle recoils with a velocity of 2.5 m. Per sec. calculate initial velocity of the bullet
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    Jul 18, 2016, 08:19 AM
    Like your subject title says - use the principle of conservation of momentum to figure it out. The system starts with zero momentum. so after the bullet is fired the sum of the bullet's momentum plus the gun's momentum = 0. Do you know how to calculate gun's momentum?
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