If at a height of ` 40 m`, the direction of moton of a projectile makes an angle `pi //4` with the orizontal, then its initial velocity and angle of projection are, respectively,

If a projectile having horizontal range of 24 m acquires a maximum height of 8 m, then its initial velocity and the angle of projection are

A particle is projected with a velocity of 20sqrt(3) ms^(-1) at an angle of 60^(@) to the horizontal. At the moment, the direction of motion of the projectile is perpendicular to the direction of initial velocity of projection, its velocity is

A particle is projected with a velocity of 20sqrt(3) m s^(-1) at an angle of 60^(@) to the horizontal.At the moment,the direction of motion of the projectile is perpendicular to the direction of initial velocity of projection, its velocity is?

What will be the effect on horizontal range of a projectile when its initial velocity is doubled keeping angle of projection same?