[填空题]
A teenager pushes tangentially on a smalqh4-i j6e+sbz 5c1py cl hand-driven merry-go-roukww 5la )7ohp1-g vh lsj,5+ylnd 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 diso ll+sw5h-,7)p a k gljh1yw5vk 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
