Answered: k= 80 N/m 4 N 6 N G ► 4 N 1.2 m…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

The disk of 5 kg mass attached to a spring
shown in the figure is moving on a vertical plane.
At a particular instant its total mechanical energy
is 108 Joules, its speed is 3 m/sec, its angular
speed is 1 Rad/sec, elongation in the spring is 0.8
m, and the spring constant is 80 N/m. The disk is
1.2 m above the reference line shown. Determine
(a) the radius of the disk, (b) angular acceleration,
and (c) horizontal and vertical components of
acceleration of the disk.

k = 80 N/m
4 N
6 N
► 4 N
1.2 m
Reference Line

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