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Mathematics 7 Online
OpenStudy (anonymous):

The position function of a particle in rectilinear motion is given by s(t) = t3 – 12t2 + 45t + 4 for t ≥ 0.Find the position and acceleration of the particle at the instant the when the particle reverses direction. Include units in your answer.

OpenStudy (anonymous):

@freckles

OpenStudy (leozap1):

That might help.

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