A remote-controlled boat B B\,B moves across a lake with constant acceleration. At time t=0t = 0t=0, B B\,B is moving in the direction (3i−4j)(3\mathbf{i} - 4\mathbf{j})(3i−4j) with speed 10 ms-1. After 5 seconds, its velocity is (11i−13j) ms−1(11\mathbf{i} - 13\mathbf{j}) \text{ ms}^{-1}(11i−13j) ms−1.
Find the acceleration of BBB.
Practise Edexcel A Level Maths Further Kinematics with exam-style questions for A Level Maths. 54 questions covering Vectors in Kinematics, Vector Methods with Projectiles, Variable Acceleration in One Dimension, Differentiating Vectors, and Integrating Vectors, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.