[填空题]
A teenager pushes tangenoe cnbmaw1 (t v9:tnha)w1g 87tially on a small hand-driven merry- aj 8dui:chk5k: h8.hkwmi 9dhpj,:k2go-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 accel28j h.hj h ik:cad98kkmh5 i,:pd:uwkeration, neglecting frictional torque. $\approx$ $m \cdot N$ What force is required at the edge? N
Post time 2025-2-18 20:00:22
