[填空题]
A teenager pushes tangentially on a sma e g.,y tgn/ 7;8)7k inhedfdiuvkvy12ll hand-driven merry-go-round ankvf8:h 780m;oh9d e;yi4s an kffs4odd is able to accelerate it from rest to a frequency of 15 rpm in 10.0 s. As;n9fhdokm 8oea;v8y s:i4ffh04 ks d7sume 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
