[填空题]
A teenager pushes tangentially on a sbqyk y-ka;z3c(al1 f-mall hand-driven merry-go-round and is aznb3) l9otk xk wec- .i-cs,4piv/6evble 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 radiu.w svc-k6e ,n 49v3exkc/-) iltbpoizs 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
