In a safety test, a car with mass 1100 kg is moving at 10 m/s when it hits a van of mass 3000 kg that is stationary. After the collision, the car and the van continue together with velocity v. Fig. 2.1 illustrates the car and van before and after the collision. The total momentum of the car and van is conserved during the collision.
(a(i))[1]
Define the term ‘momentum’.
(a(ii))[1]
State the unit used for momentum.
(b)[2]
Calculate the final velocity $v$ of the car and van after the collision.
(c(i))[2]
Calculate the combined kinetic energy of the car and van after the collision.
(c(ii))[1]
State the energy transfer that takes place in the collision.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Mass multiplied by velocity” …