Three forces (9i+2pj)(9\mathbf{i} + 2p\mathbf{j})(9i+2pj) N, (−4i+5j)(-4\mathbf{i} + 5\mathbf{j})(−4i+5j) N and (3qi+5j)(3q\mathbf{i} + 5\mathbf{j})(3qi+5j) N act on a particle AAA.
Given A A\,A is in equilibrium find the values of p p\,p and qqq.
182 exam-style questions on Edexcel A Level Maths Forces and Motion, covering 10.1 Force Diagrams, 10.2 Forces as Vectors, 10.3 Forces and Acceleration, 10.4 Motion in 2 Dimensions, 10.5 Connected Particles, and 10.6 Pulleys. Each one has a worked solution and a mark scheme showing where the marks go.