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A hockey puck of mass 0.550 kg is moving to the right with a speed of...

A hockey puck of mass 0.550 kg is moving to the right with a speed of 5.80 m/s and has a head-on collision with a 1.00 kg puck initially at rest. Assume a perfectly elastic collision.

What is the speed of the lighter puck after the collision?

What is the speed of the heavier puck after the collision?

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