A-LevelMathematicsMechanicsOct/Nov 2022Paper 4 Q712 Marks
Particles of masses 1.5kg and 3kg lie on a plane which is inclined at an angle of α to the horizontal, where tan α = 3/4. The section of the plane from A to B is smooth and the section of the plane from B to C is rough. The 1.5kg particle is held at rest at A and the 3 kg particle is in limiting equilibrium at B. The distance AB is xm and the distance BC is 4m (see diagram). [Figure X.X]
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