A 2.0-kg object moving 3.0 m/s strikes a 1.0-kg object initially at rest. Immediately after the collision, the 2.0-kg object has a velocity of 1.5 m/s directed 30° from its initial direction of motion. What is the y-component of the velocity of the 1.0-kg object just after the collision?
1) -3.7 m/s
2) -3.4 m/s
3) -1.5 m/s
4) -2.4 m/s
5) -4.1 m/s
Answer: 3