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Posted by **applebottom** on Wednesday, December 8, 2010 at 12:34am.

- Physics -
**drwls**, Wednesday, December 8, 2010 at 2:27amPut your finger at a point x so that the moments due to all three weights and the ruler weight (considered to be applied at the center of mass) add up to zero. The only unknown will be x.

20*(x-13) + 25*(x-41) + 40*(x-50) +40(*(x-64) = 0

Solve for x, in cm

- Physics -
**Jennifer**, Wednesday, December 8, 2010 at 9:57amHi drwls:

I had a question about this one. Don't we have to convert the weights into newtons for this problem and the distance to meters since torque is in Nm?

- Physics -
**applebottom**, Wednesday, December 8, 2010 at 6:28pmwhhere did u get this part from:

40*(x-50), the 40 is the mass of the ruler but what about the 50?

- Physics -
**Jesus**, Monday, December 3, 2012 at 4:23pm9.8 would cancel everywhere, so it isn't necessary if you're merely searching for distance

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