# Range of projectile traveling through two points at same elevation

1. Aug 14, 2006

### UrbanXrisis

"A projectile is fired with an initial velocity $$V_o$$ such that it passes through two points both a distant h above the horizontal. Show that if the gun is adjusted for a maximum range the separation of the potins is?"

does it look correct?

Last edited by a moderator: May 2, 2017
2. Aug 16, 2006

### Meir Achuz

h/A does NOT equal tan 45. Just look at your picture to see this.
Find h in terms of A by using the eqs. A=v_0 t cos45 and
h=v_0 t sin45-(1/2)gt^2.

3. Aug 16, 2006

### UrbanXrisis

I'm not sure why they would not be equal.