A-LevelMathematicsMechanicsMay/June 2022Paper 4 Q49 Marks
A particle A, moving along a straight horizontal track with constant speed 8ms⁻¹, passes a fixed point O. Four seconds later, another particle B passes O, moving along a parallel track in the same direction as A. Particle B has speed 20ms⁻¹ when it passes O and has a constant deceleration of 2ms⁻². B comes to rest when it returns to O.
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