Mathematics (AS & A Level) · May / June 2020 · Paper 41 · Question 4
9709
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T N 30Å The diagram shows a ring of mass 0.1 kg threaded on a fixed horizontal rod. The rod is rough and the coefficient of friction between the ring and the rod is 0.8. A force of magnitude T N acts on the ring in a direction at 30Å to the rod, downwards in the vertical plane containing the rod. Initially the ring is at rest.
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4(a)[4]
4(b)[3]
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