Find the angle of projection for a projectile motion whose rang `R` is (n) time the maximum height `H`.

Find the angle of projection for a projectile motion whose rang R is (n) times the maximum height H .

Find the angle of projection for a projectile motion whose range R is n times the maximum height H.

The angle of projection for a projectile to cover maximum range is :

Find the angle of projection of a projectile for which the horizontal range and the maximum height are equal.

Find the angle of projection of a projectile for which the horizontal range and maximum height are equal.

Find the angle of projection of a projectile for which the horizontal range and maximum height are equal.

Find the angle of projection of a projectile for which the horizontal range and maximum height are equal.

If the range of a projectile, projected from the surface of the earth is four times the maximum height attained, what is the angle of projection ?