A non-uniform rod AB AB\,AB has length 4 m and mass 15 kg. It is held horizontally by two vertical light strings attached at A A\,A and at CCC, where AC=3AC = 3AC=3 m. The tension in the string at A A\,A is twice the tension in the string at CCC.
Find the tension in the string at C C\,C in terms of ggg.
Find the distance of the centre of mass of the rod from AAA.
42 exam-style questions on WJEC A Level Maths 4.10 Moments (A-level only), covering 4.10.1 Moments (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.