Thread: Help, urgently needed in physics

1. Help, urgently needed in physics

Can someone teach how to solve formula manipulation/transformation in Physics??

2. Originally Posted by divinewisdom0218
Can someone teach how to solve formula manipulation/transformation in Physics??
You are going to have to be more specific. What kind of problem(s) are you thinking about?

-Dan

3. E.G. S=Vot + 1/2gt^2 = Vo=S - 1/2gt^2 / T

Problem no.1: from the equation, A=at+v, determine the formula for a

Problem no.2: S=Vo t+ 1/2 at^, for Vo,a

PROblem no.3: v= Vot + at^2, for Vo,a

4. Originally Posted by divinewisdom0218
Problem no.1: from the equation, A=at+v, determine the formula for a
You solve these the same way you would solve them if the A, t, and v are just numbers (which in reality they are.)

Step by step:
$\displaystyle A = at + v$

$\displaystyle A - v = at + v - v$

$\displaystyle A - v = at$

$\displaystyle \frac{A - v}{t} = \frac{at}{t}$

$\displaystyle a = \frac{A - v}{t}$

Originally Posted by divinewisdom0218
Problem no.2: S=Vo t+ 1/2 at^2, for Vo,a
For $\displaystyle V_0$:
$\displaystyle S = V_0t + \frac{1}{2}at^2$

$\displaystyle S - \frac{1}{2}at^2 = V_0t + \frac{1}{2}at^2 - \frac{1}{2}at^2$

$\displaystyle V_0t = S - \frac{1}{2}at^2$

$\displaystyle \frac{V_0t}{t} = \frac{S - \frac{1}{2}at^2}{t}$

$\displaystyle V_0 = \frac{S}{t} - \frac{1}{2}at$

You solve for a.

-Dan