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ZurasE
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Homework Statement
Here is my assignment:
For this inquiry, you will be using your meter stick, some string, some weights of known mass, and the spring force gauge from your kits. Here's the question to answer:
- what is the mass of the meter stick?
Some hints:
- hang the meter stick from some point that is not the center.
- use the spring force gauge to impart a torque
Homework Equations
So I know I am supposed to use torque to figure this out.
Torque=distance from center of mass times force
Also
F=ma
The Attempt at a Solution
So if I were to hang the meter stick at the 25 cm mark, that would make the mass of the ruler three times heavier on one side than the other. So if I were to hang a weight on one end, and a weight on the other, I could take the difference, and that would be the difference in the weights of the two parts of the meterstick.
Example:
Lets say I hung a weight of four on the long end, and it took a weight of six on the short end to balance. I subtract these and get 2. So if the difference is two in the weights of the weights that I hung, wouldn't that be the difference in the weights of the two sections of the meterstick? So in this case it would be 3 N on the long end and 1N on the short end. Is that right?