A particle C C\,C moves with constant acceleration (3i−5j) ms−2(3\mathbf{i} - 5\mathbf{j}) \text{ ms}^{-2}(3i−5j) ms−2. At time t=0t = 0t=0, C C\,C has speed u ms−1u \text{ ms}^{-1}u ms−1. At time t=4 st = 4 \text{ s}t=4 s, C C\,C has velocity (5i+4j) ms−1(5\mathbf{i} + 4\mathbf{j}) \text{ ms}^{-1}(5i+4j) ms−1.
Find the value of uuu.
163 exam-style questions on WJEC A Level Maths 4.8 Kinematics (A-level only), covering 4.8.1 Kinematics (A-level only), 4.8.2 Kinematics (A-level only), and 4.8.3 Kinematics (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.