May/June 2026 Paper 11

2026 · 40 questions · 40 parts · 40 marks

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15Moments Equilibrium Centre MassHard1 mark
A horizontal uniform rod of length 10.0 cm is shown.
a horizontal rod 10.0 cm long: upward force F1 acts 2.0 cm from the left end, downward weight W acts 5.0 cm from the left end, downward force F3 acts 7.0 cm from the left end, and upward force F2 acts 8.0 cm from the left end (2.0 cm from the right end)
The rod is acted on by its weight and by three forces , and .
The rod is in equilibrium. All the forces are vertical.
What is the ratio ?