Understand that multiple forces acting on an object can be replaced by a single resultant force that has the same overall effect.
Calculate the resultant of two forces acting in a straight line.
(HT only) Describe examples of the forces acting on an isolated object or system.
(HT only) Use free body diagrams to qualitatively describe situations where several forces lead to a resultant force, including cases of balanced forces where the resultant is zero.
(HT only) Explain how a single force can be resolved into two perpendicular component forces that together have the same effect.
(HT only) Use vector diagrams to illustrate the resolution of forces and equilibrium situations, and to determine the magnitude and direction of the resultant of two forces using scale drawings.
