## Need help with acceleration/time physics...

Sage
Posts: 1,403
Joined: 2005.07
Post: #19
no its not the average over âˆ‚t, its the mean of two numbers, u and v, initial velocity and current velocity (this applies only to a constant acceleration).

If you look at http://en.wikipedia.org/wiki/Equations_o...equation_2

it stating the equation v bar = s/t (thought it calls v bar average velocity), which for a constant acceleration alone = (u+v)/2.
This was all known before calculus techniques and does not make any assumptions about graphs or areas under graphs.

as I showed in a previous post the two equations
v = u + at
s = 1/2 * (u + v) * t

are both derived from basic mathematics and the resulting formula for t in terms of s and a was derived from simple algebraic manipulation.

so you dont need calculus for somthing this simple!

Sir, e^iÏ€ + 1 = 0, hence God exists; reply!

 Messages In This Thread Need help with acceleration/time physics... - leRiCl - Jan 9, 2007, 06:21 AM Need help with acceleration/time physics... - unknown - Jan 9, 2007, 07:24 AM Need help with acceleration/time physics... - DoG - Jan 9, 2007, 09:37 AM Need help with acceleration/time physics... - unknown - Jan 9, 2007, 10:02 AM Need help with acceleration/time physics... - Skorche - Jan 9, 2007, 11:11 AM Need help with acceleration/time physics... - unknown - Jan 9, 2007, 11:49 AM Need help with acceleration/time physics... - Skorche - Jan 9, 2007, 06:43 PM Need help with acceleration/time physics... - unknown - Jan 10, 2007, 02:15 AM Need help with acceleration/time physics... - DoG - Jan 10, 2007, 04:01 AM Need help with acceleration/time physics... - leRiCl - Jan 10, 2007, 07:00 PM Need help with acceleration/time physics... - Skorche - Jan 10, 2007, 11:15 PM Need help with acceleration/time physics... - Ummon - Jan 17, 2007, 10:06 PM Need help with acceleration/time physics... - Ummon - Jan 19, 2007, 03:23 PM Need help with acceleration/time physics... - Skorche - Jan 19, 2007, 05:20 PM Need help with acceleration/time physics... - unknown - Jan 19, 2007, 05:40 PM Need help with acceleration/time physics... - Ummon - Jan 20, 2007, 10:44 AM Need help with acceleration/time physics... - Skorche - Jan 20, 2007, 11:18 AM Need help with acceleration/time physics... - DoG - Jan 21, 2007, 03:42 AM Need help with acceleration/time physics... - unknown - Jan 21, 2007 07:06 AM Need help with acceleration/time physics... - Ummon - Jan 22, 2007, 07:46 PM