The initial position of an object at rest is given by $3 \hat{i}-8 \hat{j}$ It moves with constant acceleration and reaches to the position $2 \hat{i}+4 \hat{j}$ after $4 \,s$. What is its acceleration?

  • A

    $-\frac{1}{8} \hat{i}+\frac{3}{2} \hat{j}$

  • B

    $2 \hat{i}-\frac{1}{8} \hat{j}$

  • C

    $-\frac{1}{2} \hat{i}+8 \hat{j}$

  • D

    $8 \hat{i}-\frac{3}{2} \hat{j}$

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