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3 marksConservation of Energy

CAPE Physics Unit 1 · 2009 · Paper 2 · Question 4(a)(i)

Define 'energy' and distinguish between 'kinetic energy' and 'gravitational potential energy'.

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Other parts of this question

  1. 4(a)(ii)Show that the kinetic energy, EK, of a body of mass, m, moving with speed, v, is given by the expression EK = (1/2)mv².[4 marks]
  2. 4(b)(i)Calculate the gymnast's speed at Q.[2 marks]
  3. 4(b)(ii)Calculate the angular velocity of the gymnast at Q.[2 marks]
  4. 4(c)(i)Draw a free body diagram to show the forces acting on the gymnast at Q.[1 mark]
  5. 4(c)(ii)Calculate the tension in the rope as the string passes Q.[3 marks]

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