[填空题]
A teenager pushes tany5+rm vc4r0dxj m bv1t.am ,z20x 7bhwgentially on a small hand-driven merry-goerl ppaavhrs bv8:t:: 227* gd-round and is able to accelerate it from rest to a frequency of 15 rpm in 10.0 s. Assume grl:28*v7a vpedrt a :2:b hpsthe 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
