Acat rides a merry-go-round while turning with uniform circular motion. at time t1 = 2.00 s, the cat's velocity is v with arrow1 = (2.30)i hat + (4.00 m/s)j, measured on a horizontal xy coordinate system. at time t2 = 9.00 s, a half-revolution later, its velocity is v with arrow2 = (-2.30 m/s)i hat + (-4.00 m/s)j.