15-67. The three balls each weigh 0.5 lb and have a nefficient of restitution of e = 0.85. If ball A is released from rest and strikes ball B and then ball B strikes ball C. determine the velocity of each ball after the second collision has occurred. The balls slide without friction. r=3 ft

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.