[填空题]
A teenager pushes tangentially on a small hand-driven mert7srq 8b(c( lb6o./wca:adoq ry-go-round and is abl21a5/ lxouej ie 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 requ/x2uao ji5l1e ired 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
