On which of the following objects is a non-zero resultant force acting?
a block sliding down a ramp at a constant speed
a parachutist falling through the air at terminal velocity
a rocket accelerating upwards just after launch
a book resting on a horizontal table
183 exam-style questions on CIE IGCSE Physics 1.5.1a Forces, resultant force and motion. Each one has a worked solution and a mark scheme showing where the marks go.