Physics (AS & A Level) · Oct / Nov 2018 · Paper 11 · Question 9

What is a statement of the principle of conservation of momentum?

1. AA force is equal to the rate of change of momentum of the body upon which it acts.
2. BIn a perfectly elastic collision, the relative momentum of the bodies before impact is equal to their relative momentum after impact.
3. CThe momentum of a body is the product of the mass of the body and its velocity.
4. DThe total momentum of a system of interacting bodies remains constant, providing no resultant external force acts on the system.

As printed in the paper