What angle does the cue ball make with respect to the original line of motion?

In a pool game, the cue ball, which has an initial speed of 2 m/s, makes an elastic collision

with the eight ball, which is initially at rest.The two balls have equal masses of 3 kg. After the collision, the eight ball moves at an an angle of 40 to the original direction of the cue ball.

A. What angle does the cue ball make with respect to the original line of motion?

B. Find the speed of the cue ball. m/s

C. Find the speed of the eight ball. m/s



Please show steps! THANK YOU!!What angle does the cue ball make with respect to the original line of motion?use the momentum conservation law m1.v1 * m2.v2=m1.v ' 1 * m2.v ' 2