A cue ball initially moving at 2.5 m/s strikes a stationary eight ball of the same size and mass. After the collision, the cue ball’s final speed is 1.1 m/s . 

A cue ball initially moving at 2.5 m/s strikes a stationary eight ball of the same size and mass. After the collision, the cue ball’s final speed is 1.1 m/s .

Find the cue ball’s angle θ with respect to its original line of motion. Consider this to be an elastic collision (ignoring friction and rotational motion).
Answer in units of ◦.
 
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The post A cue ball initially moving at 2.5 m/s strikes a stationary eight ball of the same size and mass. After the collision, the cue ball’s final speed is 1.1 m/s .  appeared first on Superb Professors.

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