A cat rides a merry-go-round turning with uniform circular motion. At time t1 = 2.00 s, the

Question

cat's velocity is (3.00 m/s) + (2.70 m/s) , measured on a horizontal xy coordinate system.
At t2 = 5.90 s, its velocity is (-3.00 m/s) + (-2.70) . What are (a) the magnitude of the
cat's centripetal acceleration and (b) the magnitude of the cat's average acceleration during
the time interval t2 – t1, which is less than a period of the motion?