(i)[2]
Demonstrate that the moment of the cone’s weight about $P$ equals $6\,\text{N m}$.
(ii)[2]
So find $F$.
Mathematics 9709 · AS & A Level · Representation of data
Demonstrate that the moment of the cone’s weight about $P$ equals $6\,\text{N m}$.
So find $F$.
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Horizontal distance can be written as $0.8\times\dfrac{3}{4}\times\sin 30$ or an equivalent moment set-up” …