Military rifles have a mechanism for reducing the recoil forces of the gun on the person firing it. An internal part recoils over a relatively large distance and is stopped by damping mechanisms in the gun. The larger distance reduces the average force needed to stop the internal part. a) Calculate the recoil velocity of a1.15-kg plunger that directly interacts with a 0.0245-kg bullet fired at 650m/s from the gun. b) If this part is stopped over a distance of 21.0cm, what average force is exerted upon it by the gun? c) Compare this to the force exerted on the gun if the bullet is accelerated to its velocity in 19.0ms.

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