One billiard ball is shot east at 2.4 m/s . A second, identical billiard ball is shot west at 0.90 m/s . The balls have a glancing collision, not a head-on collision, deflecting the second ball by 90 degrees and sending it north at 1.43 m/s .
A. What is the speed of the first ball after collision?
B.What is the direction of the first ball after the collision? Give the direction as an angle south of east.