The velocity of a projectile at the initial point A is (2i +3j ̂). Its velocity (in m/s) at point B is

Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively. Which one of the following is true ?

If a body A of mass M is thrown with velocity v at an angle of 30º to the horizontal and another body B of the same mass is thrown with the same speed at an angle of 60° to the horizontal, the ratio of horizontal range of A to B will be

A particle of mass m is projected with velocity v making an angle of 45° with the horizontal. When the particle lands on the level ground the magnitude of the change in its momentum will be

A projectile is fired at an angle of 45° with the horizontal. Elevation angle of the projectile at its highest point as seen from the point of projection, is

Question is mentioned below :

A particle moving in a circle of radius R with a uniform speed takes a time T to complete one revolution. If this particle were projected with the same speed at an angle ‘θ’ to the horizontal, the maximum height attained by it equals 4R. The angle of projection, θ, is then given by :

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

A missile is fired for maximum range with an initial velocity of 20 m/s. If g = 10 m/s2, the range of the missile is

For angles of projection of a projectile at angle (45°– θ) and (45° + θ), the horizontal range described by the projectile are in the ratio of