[填空题]
A teenager pushes tan3890 9lb m xl-hucz th um6n8yr*)jrljgentially on a small hand-z hta:,e65x+ dsbtkh(driven merry-go-round and is able to accelerate it from rest to a frequency of 15 rpm in 10.0 s. Assume the met6xz5ka h be:t(hds,+rry-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
