A subterranean tunnel follows a linear path l l\,l connecting two access shafts. Relative to a fixed surveying origin OOO, where coordinates are measured in metres:
(i) Find AB→\overrightarrow{AB}AB. (ii) Find a vector equation for the line l l\,l representing the tunnel path.
A utility sensor is located at point C C\,C with position vector 5i+3j+2k5\mathbf{i} + 3\mathbf{j} + 2\mathbf{k}5i+3j+2k. A maintenance point P P\,P is located on lll.
Given that CP→\overrightarrow{CP}CP is perpendicular to lll:
Find the position vector of the point PPP.
168 exam-style questions on OCR (MEI) A Level Maths 1.11 Vectors, covering 1.11.1 Language of vectors in two dimensions, 1.11.2 Add, subtract and scale vectors, 1.11.3 Magnitude and direction of a vector, 1.11.4 Position vectors, 1.11.5 Distance between points by position vectors, 1.11.6 Vectors to solve problems, 1.11.7 Language of vectors in three dimensions (A-level only), and 1.11 Vectors. Each one has a worked solution and a mark scheme showing where the marks go.