Mathematics (AS & A Level) · Feb / March 2018 · Paper 42 · Question 4
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A particle of mass 12 kg is on a rough plane inclined at an angle of 25Å to the horizontal. A force of magnitude P N acts on the particle. This force is horizontal and the particle is on the point of moving up a line of greatest slope of the plane. The coefficient of friction between the particle and the plane is 0.8. Find the value of P. [6]
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