[填空题]
A teenager pushes tangentially on a small hand-drivenc99*i(rehc mm) bcl /7v/.: m chcnkbw m/h:orp5n lb85eo oqzk 0zb).x erry-go-round and is able to accelerate it from rest to a frequency 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, neglecl5) zozx ro/nbk. eo8q:5hp0bting frictional torque. $\approx$ $m \cdot N$ What force is required at the edge? N
Post time 2025-2-18 20:00:22
