[填空题]
A teenager pushes tangen u6 d)lqy bcc9r5et:8c bmjz63tially on a2q16cs1 q0kj/r9 my0xzqxpdemu5ye( .c as s: small 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 j cq(m192us1rcxz65:ymqeaxqp0s/.ky s0d ea 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
