A uniform seesaw LM LM\,LM of length 3 m is balanced on a central pivot. A child, Sam, of mass 24 kg sits at the end LLL. Another child, Jo, of mass 36 kg sits at a distance y y\,y m from the centre on the opposite side such that the seesaw remains horizontal.
Calculate the value of yyy.
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.