A Billiard Ball Is Moving in the X-Direction at 25

question 34

Multiple Choice

A billiard ball is moving in the x-direction at 25.0 cm/s and strikes another billiard ball moving in the y-direction at 45.0 cm/s.As a result of the collision,the first ball moves at 55.0 cm/s,and the second ball stops.In what final direction does the first ball move?

• A) in the x-direction
• B) at an angle of 60.9° ccw from the x-direction
• C) at an angle of 29.1° ccw from the x-direction
• D) ​at an angle of 65.6° ccw from the x-direction
• E) ​Such a collision cannot happen.

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