In an elastic collison

In an elastic collision

In an elastic collision

In an elastic collision

In an elastic collision

In an elastic collision

A ball is projected from ground with a velocity V at an angle theta to the vertical. On its path it makes an elastic collison with a vertical wall and returns to ground. The total time of flight of the ball is

A ball is projected from ground with a velocity V at an angle theta to the vertical. On its path it makes an elastic collison with a vertical wall and returns to ground. The total time of flight of the ball is