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Two particles with masses 2m and 9m are moving toward each other along the x axis...

Two particles with masses 2m and 9m are moving toward each other along the x axis with the same initial speeds vi. Particle 2m is traveling to the left, while particle 9m is traveling to the right. They undergo an elastic glancing collision such that particle 2m is moving downward after the collision at right angles from its initial direction.

(a) Find the final speeds of the two particles.

particle 2m: ____ ✕ vi

particle 9m: ____ ✕ vi

(b) What is the angle θ in degrees at which the particle 9m is scattered?

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The speed after collision

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