A light rod AB AB\,AB of length 5 m rests horizontally on a pivot at the point CCC, where AC=2AC = 2AC=2 m.
A downward vertical force of magnitude 30 N is applied to the rod at AAA. A downward vertical force of magnitude W W\,W newtons is applied to the rod at BBB, and the rod is in equilibrium.
Find the value of WWW.
56 exam-style questions on CCEA A Level Maths 4.2 Moments (A-level only), covering 4.2.1 Moments (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.