A particle P P\,P of mass 2 kg is moving under the action of a constant force F\mathbf{F}F newtons. When t=0t = 0t=0, P P\,P has velocity (3i+2j) m s−1(3\mathbf{i} + 2\mathbf{j}) \text{ m s}^{-1}(3i+2j) m s−1 and at time t=4 st = 4 \text{ s}t=4 s, P P\,P has velocity (15i−4j) m s−1(15\mathbf{i} - 4\mathbf{j}) \text{ m s}^{-1}(15i−4j) m s−1.
Find the acceleration of P P\,P in terms of i\mathbf{i}i and j\mathbf{j}j.
Find the magnitude of F\mathbf{F}F.
Find the velocity of P P\,P at time t=6 st = 6 \text{ s}t=6 s.
Practise Edexcel A Level Old Maths Vectors with exam-style questions for A Level Old Maths. 9 questions, matched to the Edexcel A Level Old Maths (9371) specification and written in Unit exams C1, C2, C3 and C4 plus two applied units (e.g. S1 and M1) 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.