[填空题]
A teenager pushes tangentially onxa xu3,+/q hbs a small hand-driven merry-go-round a,on j:qz3p-he fbh*xr) rfz0f/,x 1tsnd 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 m 1/jrx*z fhqeh,xrp3-b,f0t :soz)nfass 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
