A particle is aimed at a mark which is in the same horizontal plane as that of point of projection - Physics - Magnetism And Matter

Question

A particle is aimed at a mark which is in the same horizontal plane
as that of point of projection If falls 10m short the target when
it is projected at an angle of 75 and falls 10m ahead the target
when it is peojected with an elevation of 45 The angle of
projection for which the particle exactly hits this terget is

Shobhit Mittal · Accepted Answer