Consider the experiment of Problem 1.27, in which a frictionless puck is sliding straight across a rotating turntable through the center 0. (a) Write down the polar coordinates r, > of the puck as functions of time, as measured in the inertial frame S of an observer on the ground. (Assume that the puck was launched along the axis>= 0 at t = 0.) (b) Now write down the polar coordinates r', >'of the puck as measured by an observer (frame S') at rest on the turntable. (Choose these coordinates so that> and>' coincide at t = 0.) Describe and sketch the path seen by this second observer. Is the frame S' inertial