Problem01_68 - 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

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1.68: a) x x x x C B A R + + = ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 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 ( 29 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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This homework help was uploaded on 02/14/2008 for the course PHYS 112 taught by Professor Wheeler during the Spring '08 term at Cornell University (Engineering School).

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Problem01_68 - 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

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