It was calculated that a shell when fired from a gun with a certain velocity and at an angle
Channel: Doubtnut
Date: 2020-08-30

It was calculated that a shell when fired from a gun with a certain velocity and at an angle of elevation `5pi//36` radius should strike a given target. In actual practice it was found that a hill just intervened in the trajectory. At what angle of elevation should the gun be fired to hit the target ?