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3.6 Rigid Bodies (A-level only)

3.6 Rigid Bodies (A-level only)

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Question 1
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A uniform rod AB AB\,AB has length 4 m and mass 6 kg. The rod rests horizontally on two supports P P\,P and QQQ, where AP=1AP = 1AP=1 m and AQ=3AQ = 3AQ=3 m.

a.

Find the magnitude of the reactions of the support at P P\,P and QQQ.

[3]
b.

A block is now placed at B B\,B and the rod is on the point of tilting about QQQ. Find the weight of the block.

[3]
c.

Find the magnitude of the reaction at QQQ.

[2]
Markscheme

3.6 Rigid Bodies (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.6 Rigid Bodies (A-level only)

56 exam-style questions on OCR (MEI) A Level Maths 3.6 Rigid Bodies (A-level only), covering 3.6.1 Moment of a force (A-level only), 3.6.2 Equilibrium of a rigid body (A-level only), 3.6.3 Turning effect of forces (A-level only), and 3.6.4 Weight acting through a point (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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