Two objects, X and Y, move directly towards each other. The objects have the same mass. Object X has a velocity of 6.0 m/s to the right. Object Y has a velocity of 2.0 m/s to the left.
Object X and object Y collide and stick together. What is their velocity after colliding?
2.0 m/s2.0\text{ m/s}2.0 m/s to the left
2.0 m/s2.0\text{ m/s}2.0 m/s to the right
4.0 m/s4.0\text{ m/s}4.0 m/s to the left
4.0 m/s4.0\text{ m/s}4.0 m/s to the right
78 exam-style questions on CIE IGCSE Physics Momentum, covering Momentum. Each one has a worked solution and a mark scheme showing where the marks go.