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March 27, 2017

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A large 62.0 kg board is propped at a 44 angle against the edge of a barn door that is 3.1 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.

  • physics - ,

    I assume that your 44 angle is degrees. You have not said what the units are for the 3.1 width.

  • physics - ,

    the 3.1 is 3.1 m

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