Two billiard balls of equal mass move at right angles and meet at the origin of an xy coordinate system. Ball A is moving upward along the y axis at 2.0m/s, and ball B is moving to the right along the x axis with speed 3.7 m/s. After the collision, assumed elastic, ball B is moving along the positive y axis (Fig 7-37). What is the final direction of ball A and what are their two speeds?

Transcribed Image Text:

+y 'B (B "B=3.7 m/s - 2.0 m/s A.