At 10 a.m. plane A A\,A has position vector (i−2j)(\mathbf{i} - 2\mathbf{j})(i−2j) km and moves with constant velocity (−2i+j)(-2\mathbf{i} + \mathbf{j})(−2i+j) km h−1\text{h}^{-1}h−1. Another plane B B\,B has position vector (−2i−6j)(-2\mathbf{i} - 6\mathbf{j})(−2i−6j) km and moves with constant velocity (i+5j)(\mathbf{i} + 5\mathbf{j})(i+5j) km h−1\text{h}^{-1}h−1.
Find the relative displacement of plane A A\,A from plane B B\,B after t t\,t hours.
Find the time when A A\,A and B B\,B have the same northward coordinate
Find the time, after 10 a.m. when the planes are exactly 10 km apart.
363 exam-style questions on Edexcel A Level Maths Further Kinematics, covering 8.1 Vectors in Kinematics, 8.2 Vector Methods with Projectiles, 8.3 Variable Acceleration in One Dimension, 8.4 Differentiating Vectors, and 8.5 Integrating Vectors. Each one has a worked solution and a mark scheme showing where the marks go.