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Question 41

A seesaw AB AB\,AB of length 4 m is supported by a pivot at its centre. Child C C\,C of mass 30 kg sits on the end at AAA. Child D D\,D of mass k k\,k kg sits x x\,x m from the centre of the seesaw and the seesaw rests horizontally in equilibrium. The seesaw is modelled as a uniform rod.

Diagram of a seesaw AB of length 4 m supported by a pivot at its center. Child C is at A and child D is at distance x from the center.

Find the value of x x\,x in terms of kkk.

[3]
Markscheme

Moments Questions

  1. A Level
  2. /Maths
  3. /Moments

54 exam-style questions on Edexcel A Level Maths Moments, covering 4.1 Moments, 4.2 Resultant Moments, 4.3 Equilibrium, 4.4 Centres of Mass, and 4.5 Tilting. Each one has a worked solution and a mark scheme showing where the marks go.

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