A particle moves on a circle of radius 5 cm, centered at the origin, in the xy-plane (x and y measured in centimeters). At time t = 0 it starts at the point (0,5) and moves counterclockwise as t increases, going once around the circle in 12 seconds at constant speed. (a) Write a parameterization for the particle's motion. të 6 x(t) = -5 sin y(t) = 5 cos t 6 (b) What is the particle's speed? speed = (Give units

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