What movement does 3i−4j3\mathbf{i}-4\mathbf{j}3i−4j represent?
A
16i+6j m16\mathbf{i}+6\mathbf{j}\text{ m}16i+6j m
B
3 units right and 4 units down.
C
217 m s−12\sqrt{17}\text{ m s}^{-1}217 m s−1
D
Magnitude: for p=xi+yj\mathbf{p}=x\mathbf{i}+y\mathbf{j}p=xi+yj, ∣p∣=x2+y2\boxed{|\mathbf{p}|=\sqrt{x^2+y^2}}∣p∣=x2+y2.
3.2.12 Vectors to solve kinematics problems (A-level only) Flashcards
Flashcards for OCR (MEI) A Level Maths 3.2.12 Vectors to solve kinematics problems (A-level only), covering the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03. 21 cards, matched to the OCR (MEI) A Level Maths (H640) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.