Read the following write up and answer the questions based on that. The graph below gives the co....

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Read the following write up and answer the questions based on that.
The graph below gives the coordinate of a particle travelling along the \( \mathrm{X} \)-axis as a function of time. \( \mathrm{AM} \) is the tangent to the curve at the starting moment and \( \mathrm{BN} \) is tangent at the end moment \( \left(\theta_{1}=\theta_{2}=120^{\circ}\right) \).

The direction \( (\hat{i} \) or \( -\hat{i} \) ) of acceleration during the first 10 seconds is
(A) \( \hat{\mathrm{i}} \)
(B) \( -\hat{\mathrm{i}} \)
(C) Both
(D) None of these


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