problem01_74 - 49 6 47 7 11 2 2 =-arctan 104 7 11 6 47...

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1.74: a) b) To use the method of components, let the east direction be the x -direction and the north direction be the y -direction. Then, the explorer’s net x - displacement is, in units of his step size, 7 . 11 60 cos 80 45 cos 40 and the y -displacement is . 6 . 47 50 60 sin 80 45 sin 40 The magnitude and direction of the displacement are
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Unformatted text preview: 49 ) 6 . 47 ( ) 7 . 11 ( 2 2 = +-arctan 104 7 . 11 6 . 47 = -. (More precision in the angle is not warranted, as the given measurements are to the nearest degree.) To return to the hut, the explorer must take 49 steps in a direction 14 90 104 =-east of south....
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