A 3.7kg ball with a velocity of 3.4m/s in the +x-direction collides head-on elastically with a stationary 2.2kg ball. What is the speed of the first ball after the collision?
What is the direction of the velocity of the first ball after the collision?
What is the speed of the second ball after the collision?
What is the direction of the velocity of the second ball after the collision?