Suppose that a cannon shots out a ball which then collides with a boulder on a cliff. Both the ball and boulder bounce off each other as they collide and they both retain their shapes. The velocity of the cannonball was 197 m/s and it has a mass of 13 kg. On the other hand, the boulder has a 2372 kg mass.    a. What is the type of collision in the problem? Provide a proof based on the stated problem. b. Find the velocity of the cannonball after collision. c. Find the velocity of the boulder after collision.

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