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April 26, 2015

Homework Help: physics

Posted by min on Thursday, November 15, 2012 at 2:50am.

A NON-UNIFORM board of length L and mass M has a center of mass at 5/6L. If the fulcrum is placed at the center of the board and a block of mass m is placed at the right of the board, then where must a block of mass 3m be placed to balance the board?

I assumed new variables for the distances mass m and mass 3m are from the fulcrum, but the non-uniformity/center of mass is throwing me off. Help please?

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