An object moves in the xy-plane with coordinates: x=4cos(20t)(m) and y=4sin(20t)(m). a/ Find the object’s distance from the the origin and the speed of the object at every instant of time. Deduce the characteristics of this motion.
b/ Determine the magnitude and the direction of the acceleration vector at each instant of time.
c/ Sketch the trajectory of this object with the velocity vector and acceleration vector at some instant of time t.
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