A particle P P\,P moves with constant acceleration (2i−5j) m s−2(2\mathbf{i} - 5\mathbf{j}) \text{ m s}^{-2}(2i−5j) m s−2. At time t=0t = 0t=0, P P\,P has speed u m s−1u \text{ m s}^{-1}u m s−1. At time t=3 st = 3 \text{ s}t=3 s, P P\,P has velocity (−6i+j) m s−1(-6\mathbf{i} + \mathbf{j}) \text{ m s}^{-1}(−6i+j) m s−1.
Find the value of uuu.
9 exam-style questions on Edexcel A Level Old Maths Vectors. Each one has a worked solution and a mark scheme showing where the marks go.