Mathematics (AS & A Level) · Oct / Nov 2022 · Paper 43 · Question 3
9709
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A ring of mass 4kg is threaded on a smooth circular rigid wire with centre C. The wire is fixed in a vertical plane and the ring is kept at rest by a light string connected to A, the highest point of the circle. The string makes an angle of 25Å to the vertical (see diagram). Find the tension in the string and the magnitude of the normal reaction of the wire on the ring. [6]
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