Three forces act on an object F1=−6i+8j\mathbf{F}_1 = -6\mathbf{i} + 8\mathbf{j}F1=−6i+8j, F2=5i+3j\mathbf{F}_2 = 5\mathbf{i} + 3\mathbf{j}F2=5i+3j and F3=7i−3j\mathbf{F}_3 = 7\mathbf{i} - 3\mathbf{j}F3=7i−3j
Find the resultant force and its magnitude, giving your answer in exact form.
284 exam-style questions on Edexcel A Level Maths Vectors, covering 11.1 Vectors, 11.2 Representing Vectors, 11.3 Magnitude and Direction, 11.4 Position Vectors, 11.5 Solving Geometric Problems, and 11.6 Modelling with Vectors. Each one has a worked solution and a mark scheme showing where the marks go.