[填空题]
A teenager pushes tangentially j wh 0+,fha,(zrcs+c zon a small hand-d(1z3q*3jq bfhfk /p4q 9csn muriven merry-go-round and is able to accelerate it from rest to a frequency of 15 rpm in 10f3 1cqkqh93z(ps /qb mu j*nf4.0 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
