[填空题]
Suppose a 55-kg person stands at the edge of a 6.5-hrgx+,m(3l/o2 az mh ovq37bim d x35jjd,j 0me z gcwlt p+4b hu-i-)n1+bxi7wziameter merry-go-round turntable that is mounted on +bjx7 w1mgjw )u nxdt0le+5z4ihz,3c- -i p bjfrictionless bearings and 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. $rad/s$