(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

How can the validity of Equation (1) for Atwood's pulley be investigated by means of a linear graph? What quantities would the slope m and intercept b represent here?

2. Relevant equations

Equation (1):http://img522.imageshack.us/img522/1916/me4km8.jpg [Broken]

3. The attempt at a solution

Since the value for (m1+m2) never varies, It is a constant in this equation. The term g is also a constant.aand (m1-m2) are variables. So obviously I have to manipulate this equation into the y=mx+b form, with m and b as constants and x and y as variables, but for some reason I don't know how to approach it. Does the answer lie in substituting values for one of the variables from another formula?

Since a=2h[tex]^{2}[/tex]:

2h[tex]^{2}[/tex] = (m1 - m2)g/(m1 + m2) . . . (I can't seem to figure out subscripts in the latex thing. They always seem to come out as superscripts).

But then I have just said that a=g, which doesn't help me. I think part of the problem is that having the same terms (the masses) on either side is what is confusing me here. I'm not used to having to manipulate an equation like this. I know it's probably simple but I'm stumped. I'd be very grateful for even a nudge in the right direction.

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# Homework Help: Obtain y=mx+b equation for Atwood's Pulley lab.

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