A-LevelPhysicsDynamics9702/12 · May/June 2017 · Q21 Mark
Two forces act on a circular disc as shown. [Diagram shows a circular disc with two forces acting on it: 3N upwards from the top edge, and 4N to the right from the right edge.] Which diagram shows the line of action of the resultant force?
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Acircular disc with a 5N force acting diagonally upwards and to the right, originating from the center. The force is angled such that its vertical component is 3N and horizontal component is 4N.
Bcircular disc with a 5N force acting diagonally downwards and to the right, originating from the center.
Ccircular disc with a 5N force acting diagonally upwards and to the left, originating from the center.
Dcircular disc with a 5N force acting diagonally downwards and to the left, originating from the center.
✓ Correct answer
A: circular disc with a 5N force acting diagonally upwards and to the right, originating from the center. The force is angled such that its vertical component is 3N and horizontal component is 4N.
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