Recent content by Michaelbk

Hi people, i was wondering if anyone might be able to see the problem with my graph: http://img82.imageshack.us/my.php?image=grafur3.jpg There must be something wrong, since the velocity drops so fast, and i was thinking that they should all start at v0, but this isn't the case. (The...

Thank you very much, I appreciate it. :smile:

I was meaning the formula m*dv/dt=-k*v2 what's the original formula? or what is it calculated from? i mean dv/dt = a ... so might be F=m*a Newtons second law, but i don't know, i would appreciate some help here :)

Thanks :), i was wondering where this comes from too: m*dv/dt=-k*v2 Oh, and "og" is a danish word for "and", my bad :blushing:

Anyone might be able to tell me where this: m*dv/dt=-k*v2 comes from?

Hi Im trying to make an equation for a projectiles path, but this is only over a very short distance, so the projectiles curve aren't taken into account. I am including the air resistance. This is what i have done: m*dv/dt=-k*v2 Differential: dv/v2=-k*dt integrated: -1/v=-k*t+C when: t=0 og...