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3.4.3 Moments in static contexts (A-level only)

3.4.3 Moments in static contexts (A-level only)

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Question 9

A non-uniform girder MN MN\,MN has length 150 cm and mass 18 kg. A worker places a toolkit of mass 12 kg on the girder at LLL, where ML=30ML = 30ML=30 cm. The girder is held in horizontal equilibrium by two vertical supports at M M\,M and N N\,N providing tensions TM T_M\,TM​ and TNT_NTN​.

Given that the tension TN T_N\,TN​ is 12 N greater than the tension TMT_MTM​.

Find the distance, to the nearest cm, of the girder's centre of mass from MMM.

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3.4.3 Moments in static contexts (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.4.3 Moments in static contexts (A-level only)

14 exam-style questions on OCR A Level Maths 3.4.3 Moments in static contexts (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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