One billiard ball is shot east at 2.2m/s. a second, identical billiard ball is shot west at 1.2m/s. the balls have a glancing collision. not a head on collision, deflecting the second ball by 90 degrees and sending it north at 1.6m/s. what are the speed and direction of the first ball after the collision?
/s

south of east

Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.