12-7. The posItIon of a particle along a straight line isgiven by s = (t 3 – 9t2 + 1St) ft, where t is in seconds.Determine its maximum acceleration and maximumvelocity during the time interval 0 :5: t :5: 10 s.

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# The posItIon of a particle along a straight line is given by s = (t 3 – 9t2 + 1St) ft, where t is in seconds.

12-7. The posItIon of a particle along a straight line isgiven by s = (t 3 – 9t2 + 1St) ft, where t is in seconds.Determine its maximum acceleration and maximumvelocity during the time interval 0 :5: t :5: 10 s.