1.Two identical ping pong balls are rolling toward each other. Ball one is shot to the east at a speed of 1.40 m/s and ball two is shot to the west at 6.20 m/s. They do not hit head on but have a glancing collision that deflects ball two by 90. Ball two is now moving to the north at 1.10 m/s. What is the speed of ball one after the collision?