A billiard ball moving at 5.20 m/s strikes a stationary ball of the same mass. After the collision, the first ball moves at 4.75 m/s at an angle of 24.0 with respect to the original line of motion. Assuming an elastic collision (and ignoring friction and rotational motion), find the struck ball's velocity after the collision
magnitude 211
m/s
66
direction you have calculated the angle correctly, but the direction must be below the original line of motion, which is denoted by a negative value of the angle (with respect
to the original line of motion)