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Solution


Q.

A player throws a ball vertically upwards with velocity u. At highest point,
1 both the velocity and acceleration of the ball are zero  
2 the velocity of the ball is u but its acceleration is zero  
3 the velocity of the ball is zero but its acceleration is g  
4 the velocity of the ball is u but its acceleration is g  

Ans.

(3)

At the highest point, velocity of the ball becomes zero, but its acceleration is equal to g.