A-LevelMathematicsMechanicsMay/June 2017Paper 5 Q79 Marks
A particle P of mass 0.5 kg is at rest at a point O on a rough horizontal surface. At time t = 0, where t is in seconds, a horizontal force acting in a fixed direction is applied to P. At time t s the magnitude of the force is 0.6t² N and the velocity of P away from O is v m s⁻¹. It is given that P remains at rest at O until t = 0.5.
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