[填空题]
A 4.2-m-diameter merr(+w e0odfq :vry-go-round is rotating freely with an an3kl pp9 ,f64gdcvevp b)f,t-s o) xlv+gular velocity of 0.8 v,plpc+9v3vf -fo4e)bkdpt,) x6g sl$rad/s$ Its total moment of inertia is 1760 $kg \cdot m^2$ Four people standing on the ground, each of mass 65 kg, suddenly step onto the edge of the merry-go-round. What is the angular velocity of the merry-go-round now? $rad/s$ What if the people were on it initially and then jumped off in a radial direction (relative to the merry-go-round)? $rad/s$
Post time 2025-2-18 20:00:22
