[填空题]
A teenager pushes tangentialu.45g;buirubr eg :q/ly on a -z;bchn epw8;bff2ul.s0u+3rw 3gfeku / y o6small hand-driven merry-go-round 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. Calc 8 k wfzh sy30e.l/pnfboe;fu6w-gc+ bu2u3;rulate 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
