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3 marksKinetic Energy, Ek

CSEC Physics · 1988 · Paper 2 · Question 1(f)

If the mass of the girl and the bicycle is 80 kg, how much useful work does she do in reaching a velocity of 10 m s⁻¹?

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Other parts of this question

  1. 1(a)On the axes provided, sketch a velocity-time graph to illustrate the girl's journey.[4 marks]
  2. 1(b)Find the initial acceleration and the final deceleration of the girl.[3 marks]
  3. 1(c)How far did the girl travel?[3 marks]
  4. 1(d)What was the average velocity for the first 10 seconds of the journey?[3 marks]
  5. 1(e)In the space provided, sketch the displacement-time graph for the whole journey.[4 marks]

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