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3.6 Rigid Bodies (A-level only)

3.6 Rigid Bodies (A-level only)

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Question 20

In this question use g=9.8g = 9.8g=9.8 m s−2^{-2}−2.

A uniform beam AB AB\,AB of length 6 m and mass 20 kg rests horizontally in equilibrium on two supports, one at A A\,A and one at BBB.

A load of mass 40 kg is placed on the beam at a distance x x\,x m from AAA. The reaction of the support on the beam at B B\,B is three times the reaction of the support on the beam at AAA.

a.

Find the magnitude of the reaction of the support on the beam at AAA.

[2]
b.

Find the value of xxx.

[3]
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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