A cyclist rides along a straight, level road. At one moment the forward force from the cyclist is 180 N and the total resistive force on the cyclist is 180 N.
Give the resultant force on the cyclist at this moment.
The cyclist is moving at this moment. A student says: 'The cyclist must have stopped, because there is no resultant force.' Explain why the student is wrong.
The cyclist stops pedalling. The forward force becomes 0 N and the resistive force stays at 180 N. Give the size and the direction of the resultant force on the cyclist now.
Give the names of two contact forces that together make up the resistive force on a moving cyclist.
40 exam-style questions on AQA GCSE Physics 5.1 Forces and their interactions, covering 5.1.1 Scalar and vector quantities, 5.1.2 Contact and non-contact forces, 5.1.3 Gravity, and 5.1.4 Resultant forces. Each one has a worked solution and a mark scheme showing where the marks go.