[填空题]
Suppose a 55-kg personwuiz35ww k 65er, mmzwr,.xq3 stands at the edge oo6 0xq05h wd(f:h lsyvf a 6.5-m diameter merry-go-round turntable that is wx0: hdfloy(sv0h 6q5 mounted on frictionless 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. $rad/s$