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A particle is moving along a straight line and its position is given by the relation `x=(t^3-6t^2+40)m` Find (a) The time at which velocity is zero. (b) Position and displacement of the particle at that point. (c) Acceleration for the particle at that

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A particle is moving along a straight line and its position is given by the relation `x=(t^3-6t^2+40)m` Find (a) The time at which velocity is zero.
(b) Position and displacement of the particle at that point.
(c) Acceleration for the particle at that line.

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