[填空题]
Suppose a 55-kg person stant w+c37 6 oyyj-9v6vcjppz0qkds at the edgx-gr*xr4a8k xc w bgut 5-+,mge of a 6.5-m diameter merry-go-round turntable that is mounted on frictionless bearings x8x c5ur-*mgagk 4gt+r x b-,wand has a moment of inertia of 1700 $kg \cdot m^2$ The turntable is at rest initially, but when the person begins running at a speed of 3.8 $m/s$ (with respect to the turntable) around its edge, the turntable begins to rotate in the opposite direction. Calculate the angular velocity of the turntable. $rad/s$