In a projectile motion, the velocity is perpendicular to acceleration at

no instance

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one instant

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all instants

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two instants

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Solution

The correct option is B one instant
Velocity is normal to acceleration at the highest point.

Therefore, only one instant at which velocity is perpendicular to acceleration.

Final answer : (b)

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At what point of a projectile motion acceleration and velocity are perpendicular to each other

180^{o}

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