일반물리학 1 — Rotation: Problem 53

53 Figure 10-34 shows a uniform disk that can rotate around its center like a merry-go-round. The disk has a radius of 2.00 cm and a mass of 20.0 grams and is initially at rest. Starting at time t = 0, two forces are to be applied tangentially to the rim as indicated, so that at time t = 1.25 s the disk has an angular velocity of 250 rad/s counterclockwise. Force \(\vec{F}_1\) has a magnitude of 0.100 N. What is magnitude \(F_2\)?