An object is moving at a constant velocity across a rough horizontal surface.
Which statement must be correct?
The forward force on the object is greater than the friction force.
The resultant force acting on the object is zero.
The object is accelerating in the direction of travel.
No forces are acting on the object.
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.