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Question : Newton’s cradle is a common desk toy consisting of a number ...

Newton’s cradle is a common desk toy consisting of a number of identical pendulums with steel balls as bobs. These pendulums are arranged in a row in such a way that, when at rest, each ball is tangent to the next and the cords are all vertical. Assume that the COR for the impact of a ball with the next is e = 1. Explain why if you release the ball to the far left from a certain angle, the ball in question comes to a stop after impact while all the other balls do not seem to move except for the ball to the far right, which swings upward and achieves a maximum swing angle equal to the initial release angle of the ball to the far left.

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