In the above question, the acceleration in the portion \( O A \) of the curve will be : (A) Zero...

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In the above question, the acceleration in the portion \( O A \) of the curve will be :
(A) Zero
(B) \( 2 \mathrm{~m} / \mathrm{sec}^{2} \)
(C) \( 1 \mathrm{~m} / \mathrm{sec}^{2} \)
(D) \( 0.5 \mathrm{~m} / \mathrm{sec}^{2} \)
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