Posted by **Joe** on Sunday, November 4, 2012 at 4:39pm.

A fulcrum is placed under the center of a uniform 4.00m long, 3.00kg board. Child A has a mass of 42 kg. This child sits on the left end of the board; Child B has a mass of 26kg. Child B sits on the right end of the board. Where should child C (mass 21 kg) sit in order to have the board remain horizontal? What is the force of the fulcrum?

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