Two forces P and Q act on a particle. The force P has magnitude 7 N and acts due north. The resultant of P and Q is a force of magnitude 10 N acting in a direction with bearing 120∘120^\circ120∘.
Find the magnitude of Q.
Find the direction of Q, giving your answer as a bearing.
1 exam-style question on Edexcel A Level Old Maths Resolving Forces. Each one has a worked solution and a mark scheme showing where the marks go.