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23 February, 11:32

A rifle is used during the biathlon event in the Olympics the rifle has a mass of 2.5 kg the bullet has amass of 0.02 kg after that shot the bullet travels at a speed of 525 m/s what is the total momentum of the rifle bullet system before the bullet is shot?

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  1. 23 February, 14:38
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    The momentum before is zero because nothing is moving. Note that because momentum is a conserved vector, the total momentum after the shot is also zero. You just have to add the products of mass and velocity in opposite directions. So the answer is zero
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