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If t$($r$)=6$ti$+$t$^2$j$-$tk$,$ compute the tangential and normal components of the acceleration vector find a$($T$)$t a$($NUser

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If t$($r$)=6$ti$+$t$^2$j$-$tk$,$ compute the tangential and normal components of the acceleration vector find a$($T$)$t a$($N$)$t