(i)[3]
Calculate the distance from $A$ to the centre of mass of the lamina.
(ii)[3]
The lamina is freely suspended at $A$ and comes to rest in equilibrium. Determine the angle between the vertical and the side $AO$ of the lamina.
Mathematics 9709 · AS & A Level · Representation of data
Representation of data — practice question
$AOB$ is a uniform lamina shaped as a quadrant of a circle, with centre $O$ and radius $0.6\,\text{m}$ (see diagram).