Sunday, September 27, 2009

AP problem with two forces pulling log

Fnorth total = FN1 +FN2 = 1000 cos 45 deg + 1000 cos 120 deg = 707 -500 = 207 N north

Feast total = FE1 +FE2 = 1000 cos 45 deg + 1000 cos 30 deg = 707 + 866= 1573 N east

boy must provide 207 N south to make F north = 0

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