It was calculated that a shell when fired from a gun with certain velocity and at an angle of elevation 5(pi)/36 rad should strike a given target in same horizontal plane.in actual practice,it was found that a hill just prevented the trajectory . At what ange of elevation should the gun be fired to hit the target.
(A) 5(pi)/36
(B) 11(pi)/36
(C) 7(pi)/36
(C) 13(pi)/36
