[填空题]
A teenager pushes tangentially on a small hand-droj n)3mrz5qwxw0f 6f;iven merry-go-rounfx.03;z:wq4boxrx slu+fwks .q 7ng6 d 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 acceleration, neglecting frictionaz6w0 lsg wx4 k. xsxo:+3b.qf;qu7fn rl torque. $\approx$ $m \cdot N$ What force is required at the edge? N