A uniform beam has length 3.6 m and is supported by a pivot at its centre. A parcel of mass 18 kg is placed at the left-hand end. A second parcel of mass 24 kg is placed on the other side of the pivot so that the beam is horizontal and in equilibrium.
Use g=9.8 m s−2g = 9.8\text{ m s}^{-2}g=9.8 m s−2.
Find the moment of the weight of the 18 kg parcel about the pivot. State its direction.
Find the distance of the second parcel from the pivot.
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.