Quelpr
1 markConservation of Energy

CAPE Physics Unit 1 · 2013 · Paper 2 · Question 4(b)(ii)b)

Two objects, of masses m₁ and m₂, travelling in opposite directions collide. Their velocities before collision (u₁ and u₂) and after (v₁ and v₂) are given in Table 3.

Calculate the total kinetic energy of the two objects before the collision, given that m₁ = 8.5 kg.

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 4(a)State fully what is meant by the expression 'the Principle of Moments'. With the aid of an appropriate diagram, use the Principle of Moments to explain how it…[5 marks]
  2. 4(b)(i)State the law of conservation of momentum.[1 mark]
  3. 4(b)(ii)a)Assuming that the Law of Conservation of Momentum applies for this collision: Calculate the ratio of the masses of the two objects, m₁:m₂.[10 marks]
  4. 4(b)(ii)c)Was this an elastic collision? Explain why or why not.[1 mark]

More practice: the rest of this paper · more Conservation of Energy questions · all CAPE Physics Unit 1 past papers