[填空题]
A 4.2-m-diameter merry-go-round is rotating freely with an angul.v2dp ep05n ;akijb:5- cqpei ar velocgj,e+iza/n8:p iqh+*k *yat etf( dn 5ity of 0,+nia efhe *(i a8jqn*: /k+y gd5ttzp.8 $rad/s$ 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
