[填空题]
Suppose a 55-kg persony yb)zxr4t/5dv)esk. stands at the edge of a 6.5-m diameter merry-go-roun 0d7+5xvx sxf *gyqq qku,4bs7d turntable that is mounted ovf*q50yxq gu dxsx7 +qs7 ,b4kn 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. $rad/s$
