Two billiard balls (same mass) undergo a collision as shown in the figure below. Ball 1 is initially traveling along +x  direction with a speed of 10.0 m/s, and ball 2 is at rest. After the collision, ball 1 moves away with a speed of 8.20 m/s at  an angle of 22.0°. 

1. a) What angle does the final velocity of ball 2 make with the +x axis? 
2. b) Find the speed of ball 2 after the collision. 
3. c) Was the kinetic energy conserved in this collision?

Two billiard balls of equal mass undergo a perfectly elastichead-on collision. If the speed of ball 1 was initially 3.00 m/s,and that of ball 2 was 4.00 m/s in the opposite direction, whatwill be their speeds after the collision?

ball 1 _______ m/s
ball 2 _______ m/s

Two billiard balls of equal mass undergo a perfectly elastichead-on collision. If the speed of ball 1 was initially 3.00 m/s,and that of ball 2 was 4.00 m/s in the opposite direction, whatwill be their speeds after the collision?

ball 1 _______ m/s
ball 2 _______ m/s

Two billiard balls of equal mass undergo a perfectly elastic head-on collision. If the speed of ball 1 was initially 2.00 m/s, and that of ball 2 was 3.00 m/s in the opposite direction, what will be their speeds after the collision?