For no apparent reason, a poodle is running at a constant speed of v ~ 5.00 m/s in a circle with radius R = 2.50 m. Let VI be the velocity vector at time t" and let V2 be the velocity vector at time '2' Consider Av = it, - VI and At ~ t2 - tl. Recall that a = AV/At. For At = 05 s, 0.1 s, and 0.05 s, calculate the magnitude (to four significant figures) and direction (relative to VI) of the average acceleration aav. Compare your results to the general expression for the instantaneous acceleration a for uniform circular motion that is derived in the text.