Problem 2.5

Author:William Haynes

Force F of magnitude 500 lb is to be resolved into two components along lines a-a and b-b. Determine by trigonometry angle α knowing that the component of F along line a-a is to be 400 lb.

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分數化百分數：練習
bewijs stelling van Pythagoras
Tangent in Cartesian and Polar Coordinates

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