[填空题]
Suppose a 55-kg person stands at th6w* m*wiq:d zde ed8rrp8 ze8; c6y/;ckcb wpddc/wk32ihge of a 6.5-m diameter merry-go-round turntable that is mou ;k3ce;bwc8dw p zrh8r82k/c pyid6c/ nted 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. $rad/s$