In the given diagram shown, for a projectile, what is the angle of projection?

If the maximum vertical height and horizontal ranges of a projectile are same, the angle of projection will be

The horizontal range and the maximum height of a projectile are equal. The angle of projection of the projectile is

Four projectiles are projected with the same speed at angles 20^@,35^@,60^@ and 75^@ with the horizontal. The range will be the maximum for the projectile whose angle of projection is

A projectile has a range R and time of flight T. If the range is doubled (by increasing the speed of projection, without changing the angle of projection), the time of flight will become

If R and H represent horizontal range and maximum height of the projectile, then the angle of projection with the horizontal is

The maximum height attaine by a projectile is increased by 10% by increasing its speed of projecton, without changing the angle of projection. What will the percentage increase in the horizontal range.

The maximum height attaine by a projectile is increased by 10% by increasing its speed of projecton, without changing the angle of projection. What will the percentage increase in the horizontal range.

If the initial velocity of a projectile be doubled, keeping the angle of projection same, the maximum height reached by it will

Keeping the velocity of projection constant, the angle of projection is increased from 0° to 90°. Then the horizontal range of the projectile

The position coordinates of a projectile projected from ground on a certain planet (with an atmosphere) are given by y = (4t – 2t^(2)) m and x = (3t) metre, where t is in second and point of projection is taken as origin. The angle of projection of projectile with vertical is -