Go Back   Physics Help Forum > College/University Physics Help > General Physics

General Physics General Physics Help Forum

Reply
 
LinkBack Thread Tools Display Modes
Old Mar 21st 2019, 04:37 PM   #1
Member
 
Join Date: Jul 2013
Posts: 62
Math for balance physics formula

No start as time means it. When every unit is 1 as balance, 1m/(sec^2)=1*a.
1m/sec=1*a*t, (1*v=1*a*t). (1/2)*a*(sec^2)=s. (a*t)*t=2*s. t=2*s.
1*s=1*v*t. 2*s=2*v*t, 2*v*t=2*s. 1=1. It is for balance formula 1+1=2.
philipishin is offline   Reply With Quote
Old Mar 21st 2019, 05:33 PM   #2
Forum Admin
 
topsquark's Avatar
 
Join Date: Apr 2008
Location: On the dance floor, baby!
Posts: 2,776
Originally Posted by philipishin View Post
No start as time means it. When every unit is 1 as balance, 1m/(sec^2)=1*a.
1m/sec=1*a*t, (1*v=1*a*t). (1/2)*a*(sec^2)=s. (a*t)*t=2*s. t=2*s.
1*s=1*v*t. 2*s=2*v*t, 2*v*t=2*s. 1=1. It is for balance formula 1+1=2.
This has nothing to do with Relativity so I'm moving it to the General Physics Forum.

I'm afraid you are misusing the equal signs.

To be correct:
a has units of m/s^2. a does not equal m/s^2.
at has units of m/s, and so does v. However we can't really say that v = at by units themselves. A more general statement that v = kat + n, where k is unitless and n has units m/s is the best we can do. (And we can even do things like $\displaystyle v = at e^{-bt}$ where b has units of 1/s.)

A similar comment holds for s = vt.

Also, you went from $\displaystyle s = vt \implies 2s = 2vt \implies 1 = 1$. You are stating that 1 = 1, thus b = b, thus 1 = 1, where b = s or b = vt. You really aren't saying anything here so you can't conclude from this that 1 + 1 = 2. Now, this is obviously true, it's just that you can't make a conclusion like that from where you started. (And 1 + 1 = 2 is implicit in all of the Math you've done on the page anyway.)

-Dan
__________________
Do not meddle in the affairs of dragons for you are crunchy and taste good with ketchup.

See the forum rules here.
topsquark is offline   Reply With Quote
Reply

  Physics Help Forum > College/University Physics Help > General Physics

Tags
balance, formula, math, physics



Thread Tools
Display Modes


Similar Physics Forum Discussions
Thread Thread Starter Forum Replies Last Post
to discuss the gap between math and physics? htam9876 Philosophy of Physics 36 May 29th 2018 05:17 PM
Physics lab, Analytical balance, question kl.twilleger General Physics 2 Apr 15th 2013 08:35 AM
MCAT Physics Math - Pulley System Erin Kinematics and Dynamics 1 Aug 31st 2010 11:34 AM
strong math and physics titanic_211@yahoo.com General Physics 2 Sep 2nd 2009 05:33 PM
Recommend me Math Cources for Physics Major rubrix General Physics 3 Aug 5th 2009 07:49 PM


Facebook Twitter Google+ RSS Feed