marlenaea marlenaea

15-11-2018
Physics

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a 40-kg mass rest at the edge of a board that is 2 meters long. the coefficients of friction are .80 and .40. the board is slowly raised until the mass just begins to slide. at what angle does the mass begin to slide?

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apologiabiology apologiabiology

15-11-2018

at about 38.6598 degrees
see attachment for work

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