M6-Conceptual Q

# M6-Conceptual Q - Name: Sharan Multani Name: Nick...

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Name: Nick Podreborac M6 - Conceptual Questions Q1.) If a forward momentum of a bullet is the same as the backward momentum of the gun, why isn’t it as dangerous to be hit by the gun as by the bullet? Ans1.) The momentum before the weapon is fired is zero so the momentum after the weapon if fired must be zero. Mo = mass of rifle PLUS mass of slug. Vo = 0; the rifle and slug are stationary. MrVr + MsVs = MoVo = 0 Where the momentum of the rifle AFTER being fired is MrVr and MsVs is the momentum of the slug AFTER the rifle is fired. Momentum is a vector quantity and that of the rifle is in the opposite direction as that of the slug. The momentum of the rifle is equal to the momentum of the slug BUT in the OPPOSITE direction. The mass of the rifle is much larger than the mass of the slug which explains why the velocity of the slug is so much greater than the velocity of the rifle. The recoil in the gun is increased only if:

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## M6-Conceptual Q - Name: Sharan Multani Name: Nick...

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