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 vA = 1.6 m/s , and ball B is moving to the right along the x axis with speed vB = 5.1 m/s . After the collision, assumed elastic, ball B is moving along the positive y axis
a)What is the final direction of ball A?
b) What are their two speeds?
