The force, FFF, between two magnets is inversely proportional to the square of the distance, x x\,x cm, between them.
F F\,F is given by the formula: F=1728x2\displaystyle F = \frac{1728}{x^2}F=x21728
Find the Force when two magnets are 12 cm apart.
189 exam-style questions on OCR GCSE Maths Direct and Inverse Proportion. Each one has a worked solution and a mark scheme showing where the marks go.