1. The problem statement, all variables and given/known data A shell is fired with a muzzle velocity of 350ms/s at a target 1000m away. Calculate two angles at which the shell can be fired . 2. Relevant equations I think these equations might help... v=u+at s=ut+1/2at^2 v^2=u^2 + 2as Hope these eqations are right. 3. The attempt at a solution I thought about maybe this way: cos(theta)=... Sorry that is as far as I can go... Thanks for any help.