posted by Kathalina .
1) A shell is fired from a mortar over level terrain. The firing speed is 52 m/s and the mortar is aimed 63° above the horizontal. Find the range of the shell.
Range = [Vo^2 sin(2A]/g
2A = 126 degrees in this case
Try deriving the formula and it will help you learn the subject better. You can also find proofs onllne.