Ball 1, with a mass of 150 g and traveling at 15 m/s , collides head on with ball 2, which has a mass of 320 g and is initially at rest. What is the final velocity of the ball 1 if the collision is perfectly elastic? What is the final velocity of the ball 2 if the collision is perfectly elastic? What is the final velocity of the ball 1 if the collision is perfectly inelastic? What is the final velocity of the ball 2 if the collision is perfectly inelastic

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