In which of the following scenarios is the net (resultant) force acting on the object equal to zero?
An airplane flying in a straight, horizontal line at a constant speed
A spacecraft slowing down as it approaches an asteroid
A train speeding up as it leaves a station
A cyclist turning a corner at a constant speed
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.