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3.6 Rigid Bodies (A-level only)

3.6 Rigid Bodies (A-level only)

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Question 5

A uniform steel girder, XYXYXY, has a total length of 8.48.48.4 metres. The girder is balanced horizontally on a hydraulic jack positioned at its midpoint, MMM. A welding unit with a mass of 75 kg75\text{ kg}75 kg is positioned on the girder at a distance of 2.82.82.8 metres to the left of MMM. A portable generator with a mass of 120 kg120\text{ kg}120 kg is placed at a distance yyy metres to the right of MMM such that the system remains in static equilibrium.

Find yyy.

Select your answer from the following choices:

1.50 m1.50\text{ m}1.50 m

1.75 m1.75\text{ m}1.75 m

2.10 m2.10\text{ m}2.10 m

4.48 m4.48\text{ m}4.48 m

[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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