[填空题]
A 4.2-m-diameter merry-go-round is rotatin(klmag ;yag22, v4*sus-uy u uiu4 v-rh+ eji7g freelyeqc5 +i/y 7/ik yli)ps with an angular velocity of 0.5/peylsc)i7ii y+ k/q8 $rad/s$ 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
