[填空题]
A 4.2-m-diameter merry-go-round is rotating freely with an angular veln.ys3s0ef7eqy 4 *o, xjp, hzcocity of 03f,o eeh.z 7pq*,0cx jys yn4sl/zo;h,*5w jrvx psb ..8 ;o /xw*s 5vrlpz. hjb,$rad/s$ 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
