Fig. 3.1 depicts a tyre suspended from the branch of a tree. The labels shown are: branch, rope, tyre, and point P on the branch where it joins the tree. The horizontal distance from the tree trunk to the rope is 2.5 m.
(a)[2]
Calculate the weight of the tyre.
(b(i))[1]
Explain what is meant by the term moment.
(b(ii))[4]
Calculate the moment of this force about point P. Use the information shown in Fig. 3.1. Include the unit.
(b(iii))[1]
Describe how the tyre position should be adjusted so that the moment is the same as in (b)(ii).
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “W = m \times g OR 15 \times 10” …