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9) A bullet with mass 0.0075 kg is fired with a gun with mass 0.95 kg....

9) A bullet with mass 0.0075 kg is fired with a gun with mass 0.95 kg. The bullet leaves the gun at 380 m/s. a) What is the recoil speed of the gun? Assume the gun was at rest before firing. b) Is the momentum of the bullet greater, smaller or equal (in magnitude) to the recoil momentum of the gun? c) Find both the kinetic energy of the bullet and of the gun. Which is bigger, or are they equal? d) Thinking about your answers to (b) and (c) and about how dangerous the recoiling gun is compared to the fired bullet, reach a conclusion about which quantity (~p or K) is more relevant for the “damage” something can produce.

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