Recent content by Dux

And how do you do that? I have zero understanding of calculus.

I hope I'm posting this in the right section. What follows is not an actual homework problem, but it is a problem that might be similar to a textbook problem, and it involves calculus that I do not understand. The question is as follows: Homework Statement A bullet is fired from a gun. As soon...

Flight time is determined by the following equation: t = (1/(V * k)) * (exp(D * k) - 1) V = muzzle velocity (total initial velocity) k = a constant (based on bullet size/shape) D = distance to point of aim exp = the exponential function (e to the power of...)That equation was derived from the...

All of this was pretty much over my head. Could you break this down a little further? Your equation in the last post of this thread is essentially exactly what I've been using, but it produces an angle that is too small (close to accurate at shorter ranges, but substantially off once bullet...

The travel time calculation I am using (see above) accounts for drag. It's actually based on the equation that the simulation engine uses for drag.

@thegreenlaser: Thanks for bringing that up. You're right, but the kind of angles we're talking about here are typically less than one degree; the drag in the downward direction is negligible. I have tried adjusting for it in the simulation, but it doesn't have a noticeable effect on the results.

In both cases, you would need to aim lower than you would at the same distance on flat terrain. However, I am not sure how this ties into my bullet drop compensation calculation. It includes a basic air friction model, yes. The calculation for air friction is as follows: a = -kv^2 a =...

I'm hoping that someone on this board can tell me where I'm going wrong here. Basically, I'm trying to calculate the upward angle at which one would need to aim a gun in order to fire a bullet to perfectly compensate for the effect of gravity on the bullet during the course of its flight over a...