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.
33 exam-style questions on CCEA A Level Maths 4.2.1 Moments (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.