[填空题]
A teenager pushes tangentially on a small hand-driven merry-go-round mpsj(j c6boa+ 4wsx( s6l99vz and is abtlz r** nmkss/w0y +fx m:bm(7;j6dr;qnpi c 4le 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 requir7q+ydpt ;r(0*czmsbj m n/sikn;*6r wm: f4l xed 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
