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2 marksMotions

CAPE Physics Unit 1 · 2011 · Paper 2 · Question 4(c)

What TWO assumptions did you make in calculating the answers to (b) above?

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Other parts of this question

  1. 4(a)(i)Distinguish between the 'kinetic energy' and the 'gravitational potential energy' of a body near the Earth's surface and write an expression for EACH.[6 marks]
  2. 4(a)(ii)Explain why it is possible for the TOTAL mechanical energy of a system to be negative, but NOT its kinetic energy.[1 mark]
  3. 4(b)(i)Calculate the velocity of the skier at Point B, the end of the track.[7 marks]
  4. 4(b)(ii)Calculate the time the skier takes to hit the ground after he has left Point B.[1 mark]
  5. 4(b)(iii)Calculate the horizontal distance, R, of the end of the track, (Point B) from the landing point.[1 mark]

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