CAPE Physics Unit 1 · 2007 · Paper 1 · Question Q15
Two spheres, one of mass m and the other of mass \frac{m}{2} are moving towards each other with velocity, v.
The spheres have an elastic collision. Which one of the following statements is correct?
- (A)The total kinetic energy after impact is
\frac{1}{2}mv^2. - (B)The spheres stick together on impact.
- (C)The total kinetic energy after impact is zero.
- (D)The magnitude of the total momentum before impact is
\frac{1}{2}mv.
This question uses a figure or table from the paper — you'll see it when you practise.
The answer is shown once you've answered.
Practise this question