patricktaylor84
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A figure skater glides along a circular path of radius 3.42 m. If she coasts around one half of the circle, find the magnitude of the displacement vector.

Answer :

AL2006
Displacement is the distance between the start- and end-points,
no matter what route is followed from start to finish.

If she travels around half of the circle, then her start- and end-points
are the two ends of a diameter, and her displacement is its length.

The length of the diameter is (2 x radius) = 6.84 meters.

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