A student resolves a diagonal force into horizontal and vertical components. The student then includes the original force and both components as three separate forces when finding the resultant on an object. What error does this produce?
The contribution of the diagonal force is cancelled out.
The contribution of the diagonal force is counted twice.
Only the horizontal contribution is counted twice.
Only the vertical contribution is cancelled out.
93 exam-style questions on Edexcel GCSE Physics 9.1 Forces and vectors, covering 9.1.1 Interactions and types of force, 9.1.2 Vector and scalar quantities, and 9.1.3 Vector diagrams and free body diagrams. Each one has a worked solution and a mark scheme showing where the marks go.