In: Physics
Billiard balls A and B of equal mass move at right angles and meet at the origin of an xy coordinate system. Initially ball A moves along the y axis at 2.0m/s and ball B is moving to the right along x axis at 3.7 m/s.
After the collision, assumed elastic, ball B moves along the positive y axis with velocity v'B.
What is the final direction of ball A and what are the speeds of the two balls?