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A proton is traveling to the right at 1.50×107 m/s. It has a head-on perfectly elastic...

A proton is traveling to the right at 1.50×107 m/s. It has a head-on perfectly elastic collision with a carbon atom. The mass of the carbon atom is 12 times the mass of the proton. What is the magnitude of proton speed after the collision?

What is the magnitude of carbon atom speed after the collision?

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Answer #1

Concept: we use the principle of conservation of momentum taking right as positive direction. Since the collision is elastic, coefficient of restitution is 1. We use these facts to form equations and solve them to find the velocities

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