Mathematics (AS & A Level) · May / June 2020 · Paper 42 · Question 3
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20Å T N 60Å 2.5 kg A particle of mass 2.5 kg is held in equilibrium on a rough plane inclined at 20Å to the horizontal by a force of magnitude T N making an angle of 60Å with a line of greatest slope of the plane (see diagram). The coefficient of friction between the particle and the plane is 0.3. Find the greatest and least possible values of T. [8] 5
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