Three forces (2i+5pj)(2\mathbf{i} + 5p\mathbf{j})(2i+5pj) N, (−6i+3j)(-6\mathbf{i} + 3\mathbf{j})(−6i+3j) N and (5qi+9j)(5q\mathbf{i} + 9\mathbf{j})(5qi+9j) N act on a particle DDD.
Given D D\,D is in equilibrium, find the values of p p\,p and qqq.
30 exam-style questions on Edexcel AS 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.