[填空题]
Suppose a 55-kg person stands a1pjo*,a6ol,ge w6 h32yuan 6 kbk-csyt ,y ao 114d1i osj(b )m05rwshuvqr1 kdthe edge of a 6.5-m diameter merry-go-round turntable that is mounted on frictionless bearings and has a moment of inertbs w1sq150ao(, ydi1)14jd rhruvmo kia 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. $rad/s$