Physics 9702 · AS & A Level · Turning effects of forces
Turning effects of forces — practice question
(a)[2]
State the meaning of the centre of gravity of a body.
(b(i))[1]
Calculate the horizontal component of the force that the wire attached at point C exerts on the post.
(b(ii))[2]
Using moments about end A, find the tension $T$.
(b(iii))[1]
Calculate the vertical component of the force the wire exerts on the post at end A.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The single point at which the body's total weight may be regarded as acting” …