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A particle moves on a circle of radius 5 cm, centered at the origin, in the...

A particle moves on a circle of radius 5 cm, centered at the origin, in the ??-plane (? and ? measured in cen- timeters). It starts at the point (10,0) and moves counter- clockwise, going once around the circle in 8 seconds.

(a) Writeaparameterizationfortheparticle’smotion.

(b) What is the particle’s speed? Give units.

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