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July 29, 2014

Homework Help: physics- help please

Posted by emmie on Tuesday, May 15, 2012 at 9:39pm.

A large 62.0 kg board is propped at a 44 degree angle against the edge of a barn door that is 3.1m wide.How great a horizontal force must a person behind the door exert (at the edge) in order to open it? Assume that there is negligible friction between the door and the board but that the board is firmly set against the ground

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