Please no hand writing solution A bolt of mass 10 g is weldedtangentially to the end of a torsionspring with a 3.5 cm radius. Thespring is attached to the center ofthe board with the bolt restinghorizontally at equilibrium directlyabove the center of the spring.(a) The board is rotated 78º, atwhich time the bolt pointsvertically. What is the stiffness ofthe torsion spring.(b) If the board is rotated to 90°,then what is the extension of thespring in radians?

Answered: A bolt of mass 10 g is welded…

A bolt of mass 10 g is welded tangentially to the end of a torsion spring with a 3.5 cm radius. The spring is attached to the center of the board with the bolt resting

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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Concept explainers

Free undamped vibrations

Whenever an object/system displaces in either side of its equilibrium position with the help of an external/internal means, then the object/system moves regularly or randomly on both sides of its equilibrium position. This motion is called vibration. Generally, there are three types of vibration: longitudinal vibration, transverse vibration, and torsional vibration.

Question

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Please no hand writing solution

A bolt of mass 10 g is welded
tangentially to the end of a torsion
spring with a 3.5 cm radius. The
spring is attached to the center of
the board with the bolt resting
horizontally at equilibrium directly
above the center of the spring.
(a) The board is rotated 78º, at
which time the bolt points
vertically. What is the stiffness of
the torsion spring.
(b) If the board is rotated to 90°,
then what is the extension of the
spring in radians?

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Part (a) The board is rotated 78⁰, at which time the bolt points vertically.

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Part B If the board is rotated to 90⁰

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