A shell is fired from a fixed artillery gun with an initial speed u such that it hits the target on the ground at a distance R from it. If and are the values of the time taken by it to hit the target in two possible ways, the product is:
Horizontal Range -
Horizontal distance travelled by projectile from the point of projectile to the point on ground where its hits.
Special case of horizontal range
For max horizontal range.
If the range is equal for both the target then the angle of projection may be different.
ranges are equal.