An object moving along the $x$-axis with a uniform acceleration has a velocity $\vec{v} = (12 \ cm \ s^{-1}) \hat{i}$ at $x = 3 \ cm$. After $2 \ s$,if it is at $x = -5 \ cm$,then its acceleration is:
- A$\vec{a} = (-16 \ cm \ s^{-2}) \hat{i}$
- B$\vec{a} = (11 \ cm \ s^{-2}) \hat{i}$
- C$\vec{a} = (-11 \ cm \ s^{-2}) \hat{i}$
- D$\vec{a} = (8 \ cm \ s^{-2}) \hat{i}$
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