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A cue ball strikes two billiard balls at rest simultaneously with a speed of 8.0 m/s. Immediately after the collision, the cue ball stops in place, while one of the other balls moves with a velocity of 5.0 m/s at 20° from the cue balls line of action. If the other ball that was struck moves at 30° in the direction illustrated, and all three balls have equal mass, find the post-collision speed V2 of the second ball. 2. V2-? V8.0 m/s m V-8.0m/s = 20. Cue ball mc m2 v, 5.0 m/s
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