A-LevelMathematicsMechanicsOct/Nov 2020Paper 4 Q712 Marks
Three points A, B and C lie on a line of greatest slope of a plane inclined at an angle of 30° to the horizontal, with AB = 1 m and BC = 1m, as shown in the diagram. A particle of mass 0.2kg is released from rest at A and slides down the plane. The part of the plane from A to B is smooth. The part of the plane from B to C is rough, with coefficient of friction μ between the plane and the particle. [Figure 7.1]
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