A car moves in a circular track of radius $4 m$ at a constant speed of $2 m s^{- 1}$ from A and B shown in figure. The acceleration of car at the position halfway between A and B is

- \frac{1}{\sqrt{2}} (^i +^j)

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\frac{1}{\sqrt{2}} (^i +^j)

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- (^i +^j)

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zero

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Solution

The correct option is A $- \frac{1}{\sqrt{2}} (^i +^j)$

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