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If s=2t^(3)+3t^(2)+2t+8 then find time a...

If `s=2t^(3)+3t^(2)+2t+8` then find time at which acceleration is zero.

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`v=(ds)/(dt)=6t^(2)+6t+2rArra=(dv)/(dt)=12t+6=0`
`rArrt=-(1)/(2)` which is impossible. Therefore acceleration will not zero at any time
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