Which out of these does not affect the maximum height of a projectile?

For the maximum height of a projectile

Derive an expression for maximum height of a projectile .

What do you mean by maximum height attained by a projectile ?

In the absence of wind the range and maximum height of a projectile were R and H . If wind imparts a horizontal acceleration a=g//4 to the projectile then find the maximum range and maximum height.

In the absence of wind the range and maximum height of a projectile were R and H. If wind imparts a horizontal acceleration a = g/4 to the projectile then find the maximum range and maximum height.

The angle of projection at which the horizontal range and maximum height of projectile are equal is