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4 marksWork, Energy and Power

CAPE Applied Mathematics Unit 2 · 2011 · Paper 2 · Question 6(b)(i)

The block shown in the diagram is constrained to move along fixed guides. A horizontal force of 900 N is required to move the block upwards along the slope a distance of 0.4 m. The slope is inclined at 40° to the horizontal.

Calculate the work done.

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Other parts of this question

  1. 6(a)(i)Sketch a velocity-time graph for the motion of the train.[4 marks]
  2. 6(a)(ii)Using the graph, determine the initial uniform acceleration of the train, if the time taken for the whole journey is 6 minutes.[10 marks]
  3. 6(b)(ii)If the block is of mass 70 kg and there is a frictional force opposing the motion of the block, find the magnitude of the frictional force.[7 marks]

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