A uniform rod AB AB\,AB has length 4 m and mass 12 kg. It is supported horizontally at A A\,A and at a point CCC, where AC=3AC=3AC=3 m. A particle of mass 6 kg is attached at BBB.
Find the magnitudes of the reactions at A A\,A and CCC. Use g=9.8g=9.8g=9.8 m s−2^{-2}−2.
53 exam-style questions on OCR A Level Maths 3.4 Moments (A-level only), covering 3.4.1 Moment of a force (A-level only), 3.4.2 Equilibrium of a rigid body (A-level only), and 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.