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4 A particle P travels in a straight line. At times, the displacement of P from a point O on the line is s

4 A particle P travels in a straight line. At times, the displacement of P from a point O on the line is s m. At time ts, the acceleration of P is (12t-4) m s. When t = 1, s = 2 and when t = 3, s = 30. Find the displacement when t = 2. (8 marks)

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