1- A cat rides a merry-go-round turning with uniform circular motion. At time 1 = 2.00 s, the cat's velocity is v1 = (3.00 m/s)i + (4.00 m/s)j, measured on a horizontal xy coordinate system. At 12 = 5.00 s, the cat's velocity is v2 = (-3.00 m/s)i + (-4.00 m/s)j. What is the magnitude of the cat's centripetal acceleration. [4]
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