Skater glides along circular path of radius 5.5m. (a) I he coasts around one hal

Question

Skater glides along circular path of radius 5.5m. (a) I he coasts around one half of the circle, find themagnitude of the displacement vector in meters. (b) Find how far the person skated in meters. (c) What is the magnitude of the displacement if he skates allthe way around the circle in meters? Skater glides along circular path of radius 5.5m. (a) I he coasts around one half of the circle, find themagnitude of the displacement vector in meters. (b) Find how far the person skated in meters. (c) What is the magnitude of the displacement if he skates allthe way around the circle in meters?

Explanation / Answer

a) displacement = distance form initial position to finalposition so since he went half of a circle, his displacement is the diameterof the circle. displacement = diameter = 2 radius = 2(5.5) = 11 m b) distance skated = 1/2 of the circumference = (1/2)(2r)=(0.5)(2)()(5.5) = 17.279 m c)displacement = distance form initial position to finalposition so if he skates all the way around, his displacement will be zerosince his initial and final position are the same. displacement = 0 Hopefully this helps!

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