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  4. At the top of the trajectory of a projectile, the directions of its velocity and acceleration are :

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Q. At the top of the trajectory of a projectile, the directions of its velocity and acceleration are :

J & K CETJ & K CET 2002

Solution:

At the highest point of the trajectory of a projectile, only the horizontal component of velocity exists while vertical component is zero. Also, acceleration due to gravity acts vertically downwards, hence at the top of the trajectory of a projectile, the direction of its velocity and acceleration are perpendicular to each other.

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