problem01_68

# problem01_68 - x-axis and rounded to the nearest degree is...

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1.68: a) x x x x C B A R m. 3 . 5 60 180 sin m 0 . 6 40 sin m 00 . 15 37 90 sin m 0 . 12 and m, 7 . 15 60 180 cos m 0 . 6 40 cos m 00 . 15 37 90 cos m 0 . 12 y y y y C B A R The magnitude of the resultant is m 6 . 16 2 2 y x R R R , and the direction from the positive x -axis is arctan 6 . 18 7 . 15 3 . 5 . Keeping extra significant figures in the intermediate calculations gives an angle of , 49 . 18 which when considered as a positive counterclockwise angle from the positive
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Unformatted text preview: x-axis and rounded to the nearest degree is 342 . b) ( 29 m; 14 . 5 m 58 . 9 m 64 . 9 m 20 . 5 m; 71 . 21 m 49 . 11 m 22 . 7 m 00 . 3-=----=-=---= y x S S 3 . 13 ) 71 . 21 ( ) 14 . 5 ( arctan = --= θ m 3 . 22 ) m 14 . 5 ( ) m 71 . 21 ( 2 2 =-+-= S...
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