O-LevelPhysicsForces5054/11 · May/June 2013 · Q41 Mark
A particle P is moving in a horizontal circle about O. P moves at constant speed. Which statement is true?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Aforce of constant size acts on P in the direction of motion.
Bforce of constant size acts on P towards O.
CThe force on P varies in size as it moves around the circle.
DThere is no resultant force acting on P.
✓ Correct answer
B: force of constant size acts on P towards O.
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