Question 5.

5 ) (10 points) A 1.2-kg ball with an initial velocity of 8.0 m/s, east, collides with a 0.90 kg ball initially at rest. After the collision, the 1.2-kg ball has a velocity of 4.5 m/s, at 30 below its initial direction of propagation. What are the magnitude and direction of the velocity of the 0.90-kg ball after the collision? After the collision: Before the collision: V'B MA = 1.2 kg MB = 0.90 kg 0.90 kg - - - - -- O- O VA = 8.0 m/s 1.2 kg - - - - - - -- O- 130 X V V'A = 4.5 m/s