[填空题]
A 4.2-m-diameter merry-go-round is rotath5c iakp y :(-ifnfy//ez(idehl 6 n)-2c2umn ing freely with an angular velocity n2jxe+thow 8ij/a3ft afo2 61of 0.8 /aon6j f oajt1w +t3eh2fx2i8 $rad/s$ 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
