A gun of muzzle speed `v_(0)` is situated at height h above a horizontal plane. Prove that the
Channel: Doubtnut
Date: 2021-11-10

A gun of muzzle speed `v_(0)` is situated at height h above a horizontal plane. Prove that the angle at which it must be fired so as to achieve the greatest range on the plane is given by-   `theta = (1)/(2)cos^(-1) ((gh)/(v_(0)^(2)+gh))`