[填空题]
A 4.2-m-diameter merr-sl,rl 2 l5ei* ik0q/dc 2 job5; dkc2dievxm)y-go-round is rotating frdzu j 29/+lsqr9u7s kaeely with an angular velocity of 0zra79ls2+s/dk qu uj9.8 $rad/s$ 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
