A commuter backs her car $($from rest$)$ out of her garage with an acceleration of $1\mathrm{.}95$ m$/$s$2$

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a$)$ How long does it take her to reach a speed of $1\mathrm{.}78$ m$/$s$?$

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b$)$ If she then brakes to a stop in $0\mathrm{.}67$ s$,$ what is her acceleration? Careful with the sign!

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