A-LevelMathematicsMechanicsFeb/Mar 2019Paper 5 Q711 Marks
A particle P is projected horizontally from a point O on a rough horizontal surface. The coefficient of friction between the particle and the surface is 0.2. A horizontal force of magnitude 0.06t N directed away from O acts on P, where ts is the time after projection. P comes to rest when t = 4.
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