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4 Unit A2 2: Applied Mathematics (A-level only)

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Question 133

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

A seesaw AB AB\,AB of length 4 m is supported by a pivot at its centre. The seesaw is modelled as a uniform rod.

Child CCC, of mass 30 kg, sits on the seesaw at the end AAA. Child DDD, of mass 45 kg, sits on the seesaw at a distance x x\,x m from the centre, on the opposite side of the pivot from CCC.

The seesaw rests horizontally in equilibrium.

Figure for question 3

Find the value of xxx.

[3]
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4 Unit A2 2: Applied Mathematics (A-level only) Questions

  1. A Level
  2. /Maths
  3. /4 Unit A2 2: Applied Mathematics (A-level only)

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