O-LevelPhysicsForces5054/12 · May/June 2016 · Q61 Mark
A uniform plank is pivoted at its mid-point. Two weights are added to the plank, one weight on each side of the pivot in the positions shown. A vertical force is applied at point X to balance the plank. What is the size and direction of this force?
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.
A2.0, downwards
B2.0, upwards
C4.0, downwards
D4.0, upwards
✓ Correct answer
B: 2.0, upwards
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