Question

Which of the following is not true in the case of a projectile
time of flight is proportional to speed
(2)
for given velocity horizontal range is maximum for 45° of the angle of projection
(3)
horizontal range is proportional to the square root of the period
(4)
at the maximum height the acceleration is perpendicular to the velocity of the projectile​

Answer 1

The incorrect statement is :

(3)  horizontal range is proportional to the square root of the period .

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