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The distance covered by a moving particle through point O is given by the equation, s = t3 - 15t2 + 63t — 10. Find:
(a) Distance covered when t= 2; (2 marks)
(b) The distance covered during the 3rd second ;( 3 marks)
(c) The time when the particle is momentarily At rest ;( 3 marks) (d) The acceleration when t =5. (2 marks)