(a)[2]
Each of the two supports has a contact area of $0.040\,\text{m}^2$ touching the ground. Calculate the pressure on the ground caused by the bench.
(b(i))[2]
The bench’s centre of mass is $1.1\,\text{m}$ from the left-hand end of the bench and $0.24\,\text{m}$ from the front. Suggest one reason why the centre of mass is in this position.
(b(ii))[3]
A force acts vertically downwards at the point P shown in Fig. 1.1. Calculate the greatest force that can be applied vertically downwards at P without the bench toppling about the point Q shown in Fig. 1.1.