As shown below, a constant force F (with a magnitude of 25 N) pulls rightward on a box (m = 1.5 kg). The other side of the box is attached to a cord which is wrapped around a uniform solid disk (with a mass of 1.2 kg, a radius of 0.075 m, and a frictionless bearing). (I =-MR² for a uniform solid disk rotating about its center) The box travels 0.30 m while the constant force acts. 4 points each for finding any of the following: Notes/hints: You don't necessarily have to find them in this order. The final kinetic energy of the system will be equal to the work done by the force F. (a) (4 points) Find the angular acceleration of the disk (b) (4 points) Find the torque that the cord exerts on the disk (c) (4 points) Find the angular speed of the disk after the box has moved 0.30 m frictionless
As shown below, a constant force F (with a magnitude of 25 N) pulls rightward on a box (m = 1.5 kg). The other side of the box is attached to a cord which is wrapped around a uniform solid disk (with a mass of 1.2 kg, a radius of 0.075 m, and a frictionless bearing). (I =-MR² for a uniform solid disk rotating about its center) The box travels 0.30 m while the constant force acts. 4 points each for finding any of the following: Notes/hints: You don't necessarily have to find them in this order. The final kinetic energy of the system will be equal to the work done by the force F. (a) (4 points) Find the angular acceleration of the disk (b) (4 points) Find the torque that the cord exerts on the disk (c) (4 points) Find the angular speed of the disk after the box has moved 0.30 m frictionless
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:As shown below, a constant force F (with a magnitude of 25 N) pulls rightward on a box (m = 1.5 kg). The
other side of the box is attached to a cord which is wrapped around a uniform solid disk (with a mass of 1.2 kg,
%3D
a radius of 0.075 m, and a frictionless bearing). (I ==MR² for a uniform solid disk rotating about its center)
%3D
2
The box travels 0.30 m while the constant force acts. 4 points each for finding any of the following:
Notes/hints:
You don't necessarily have to find them in this order.
The final kinetic energy of the system will be equal to the work done by the force F.
(a) (4 points) Find the angular acceleration of the disk
(b) (4 points) Find the torque that the cord exerts on the disk
(c) (4 points) Find the angular speed of the disk after the box has moved 0.30 m
m
frictionless
IL
10
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