The diagram shows two ‘vehicles’ on an air track approaching each other.
After impact they stick together.
Image
The speed of the heavier vehicle is 0.60 m s–1.
(a) If the lighter vehicle is travelling at 0.42 m s–1, calculate the velocity of the vehicles after the collision. [3]
(b) If both vehicles are stationary after the collision, what is the speed of the lighter vehicle before the collision? [2]
