- #1
Dextrine
- 102
- 7
Homework Statement
"What is the maximum angle above the horizontal with which a projectile can be
fired so that its distance from its point of firing (on earth) is always increasing?"
[/B]
Homework Equations
r^2=t^2 v^2 Cos[x]^2 + (-4.905 t^2 + t v Sin[x])^2
The Attempt at a Solution
I have tried setting dr/dt > 0 so that the distance is always increasing as well as I have also tried setting
dr^2/dt > 0. However, I don't know how to solve the equation after getting to this point(mathematica doesn't help either as it says there is no method for solving that equation with Solve[]). Or even if that is what I'm supposed to do