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Billiard balls of identical mass roll on a table, and we can ignore the small friction...

Billiard balls of identical mass roll on a table, and we can ignore the small friction between the balls and the table. The cue ball travels east at a speed of 10 m/s and hits the 8 ball which is initially stationary. After the collision the cue ball travels at a speed of 3 m/s 10 degrees south of its initial eastward heading. What is the magnitude of the velocity of the 8 ball after the collision in m/s? Enter only the number to two significant figures.

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genius_generous answered 2 years ago
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