A toy car P P\,P of mass 0.60 kg is travelling along a straight track with a velocity of 4.0 m/s. It collides with a stationary toy car Q Q\,Q of mass 1.4 kg. The two cars then stick together. What is the velocity of the combined cars?
1.2 m/s1.2\text{ m/s}1.2 m/s in the same direction as PPP was travelling originally
1.2 m/s1.2\text{ m/s}1.2 m/s in the reverse direction to that in which PPP was travelling originally
2.4 m/s2.4\text{ m/s}2.4 m/s in the same direction as PPP was travelling originally
2.4 m/s2.4\text{ m/s}2.4 m/s in the reverse direction to that in which PPP was travelling originally
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.