ch03-p007 - 7. The length unit meter is understood...

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(a) We compute the distance from one corner to the diametrically opposite corner: 222 (3.00 m) (3.70 m) (4.30 m) ++ . (b) The displacement vector is along the straight line from the beginning to the end point of the trip. Since a straight line is the shortest distance between two points, the length of the path cannot be less than the magnitude of the displacement. (c) It can be greater, however. The fly might, for example, crawl along the edges of the room. Its displacement would be the same but the path length would be 11.0 m. wh ++= A (d) The path length is the same as the magnitude of the displacement if the fly flies along the displacement vector. (e) We take the x axis to be out of the page, the y axis to be to the right, and the z axis to be upward. Then the x component of the displacement is
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ch03-p007 - 7. The length unit meter is understood...

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