(a)[1]
State the moment of force P about B, in terms of P.
(b(i))[1]
Calculate the moment of W about point B.
(b(ii))[2]
Calculate the force P.
(b(iii))[2]
Calculate the force Q.
Physics 0625 · IGCSE · Forces
Forces — practice question
Fig. 2.1 illustrates a uniform plank AB, 2.0 m long, hanging from two ropes X and Y.
The plank has weight W of 210 N. The force in rope X is P. The force in rope Y is Q.