[填空题]
A teenager pushes tangentially pl1lzpeglg/c,/ 1 /,pb: nefle3 3fjwj5kgwp84 ib.jf z 2c7eon a small hand-driven merry-go-round and is able to accelerate it from rest to a frequen4cj 7wij5f zej8bkpg33 w 2fe.cy of 15 rpm in 10.0 s. Assume the merry-go-round is a uniform disk of radius 2.5 m and has a mass of 760 kg, and two children (each with a mass of 25 kg) sit opposite each other on the edge. Calculate the torque required to produce the acceleration, neglecting frictional torque. $\approx$ $m \cdot N$ What force is required at the edge? N
Post time 2025-2-18 20:00:22
