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Mystery #1Tier 1momentum collisions physics

Why does lifting one ball of a Newton's cradle make the ball at the far end jump?

You pull back one shiny ball and let it swing down. It clacks into a row of balls that barely twitch. Yet the ball right at the far end suddenly flies up, all on its own. How does the swing jump across the still balls in the middle?

A Newton's cradle on a desk: five polished steel balls hanging in a row from thin wires, with the ball at one end swung out to the side.
Photo: The Dean of Physics · CC BY-SA 4.0 · via Wikimedia Commons

Your guess

What do you think carries the swing from the first ball all the way to the last?

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