document.write( "Question 1091527: The position function of a particle in rectilinear motion is given by s(t) = 2t^3 + 21t^2 + 60t + 3 for t ≥ 0 with t measured in seconds and s(t) measured in feet. Find the position and acceleration of the particle at the instant when the particle reverses direction. Include units in your answer. \n" ); document.write( "
Algebra.Com's Answer #706030 by ikleyn(52817)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Plot y = \"2t%5E3+%2B+21t%5E2+%2B+60t+%2B+3\"\r
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