A-LevelMathematicsMechanicsMay/June 2023Paper 4 Q35 Marks
A smooth ring R of mass 0.2kg is threaded on a light string ARB. The ends of the string are attached to fixed points A and B with A vertically above B. The string is taut and angle ABR = 90°. The angle between the part AR of the string and the vertical is 60°. The ring is held in equilibrium by a force of magnitude XN, acting on the ring in a direction perpendicular to AR (see diagram).
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