AQA M2 2012 June — Question 3

Exam BoardAQA
ModuleM2 (Mechanics 2)
Year2012
SessionJune
TopicCentre of Mass 1

3 A uniform rectangular lamina \(A B C D\), of mass 1.6 kg , has side \(A B\) of length 12 cm and side \(B C\) of length 8 cm . To create a logo, a uniform circular lamina, of mass 0.4 kg , is attached. The centre of the circular lamina is at the point \(C\), as shown in the diagram.
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  1. Find the distance of the centre of mass of the logo:
    1. from the line \(A B\);
    2. from the line \(A D\).
  2. The logo is suspended in equilibrium, with \(A B\) horizontal, by two vertical strings. One string is attached at the point \(A\) and the other string is attached at the point \(B\). Find the tension in each of the two strings.