[填空题]
A 4.2-m-diameter merry-go-b(ga mf-d r1a*round iscod ; ,/)j m-gp1hb);cmtleom rotating freely with an angular velocity of 0.-m/m;)jltg,d; oc ob) emcp1h8 $rad/s$ 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
