A uniform disk with massm = 8.75 kg and radius R = 1.41 m lies in the x-y plane and centered at the origin. Three forces act in the +y- direction on the disk: 1) a force 315 N at the edge of the disk on the +x-axis, 2) a force 315 N at the edge of the disk on the -y-axis, and 3) a force 315 N acts at the edge of the disk at an angle 0 = 38° above the -x-axis. +y +x F3 IF, 1 F2

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter12: Rotation I: Kinematics And Dynamics
Section: Chapter Questions
Problem 72PQ: Consider the disk in Problem 71. The disks outer rim hasradius R = 4.20 m, and F1 = 10.5 N. Find the...
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4) What is the magnitude of the angular acceleration about the z axis of the disk?
rad/s? Submit
5) If the disk starts from rest, what is the rotational energy of the disk after the forces have been applied fort = 1.6 s?
J Submit
Transcribed Image Text:4) What is the magnitude of the angular acceleration about the z axis of the disk? rad/s? Submit 5) If the disk starts from rest, what is the rotational energy of the disk after the forces have been applied fort = 1.6 s? J Submit
A uniform disk with mass m = 8.75 kg and radius R = 1.41 m lies in
the x-y plane and centered at the origin. Three forces act in the +y-
direction on the disk: 1) a force 315 N at the edge of the disk on
the +x-axis, 2) a force 315 N at the edge of the disk on the -y-axis,
and 3) a force 315 N acts at the edge of the disk at an angle 0 =
38° above the -x-axis.
+y
+x
F3
IF,
F2
Transcribed Image Text:A uniform disk with mass m = 8.75 kg and radius R = 1.41 m lies in the x-y plane and centered at the origin. Three forces act in the +y- direction on the disk: 1) a force 315 N at the edge of the disk on the +x-axis, 2) a force 315 N at the edge of the disk on the -y-axis, and 3) a force 315 N acts at the edge of the disk at an angle 0 = 38° above the -x-axis. +y +x F3 IF, F2
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