Which of the following describes an object with a non-zero resultant force acting on it?
A metal block sliding down a rough inclined plane at a constant speed.
A book resting on a horizontal table.
A rocket accelerating upward through the atmosphere.
A wooden toy boat floating stationary on the surface of a pond.
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.