A ball is thrown from ground with speed up at an angle theta with the horizontal, at the same instant from the same position a boy runs along the ground with speed 1.732u/2 to catch the ball .If the boy is able to catch the ball, the angle of projection theta is
A ball is thrown from ground with speed up at an angle theta with the horizontal, at the same instant from the same position a boy runs along the ground with speed 1.732u/2 to catch the ball .If the boy is able to catch the ball, the angle of projection theta is