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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To use the concept of conservation of energy on a system of particles to determine key characteristics about the mechanics of the system, such as velocity and position.

The 3.45 kg cols lar hown below is attached dto a spring an released from rest at A. The collar then travels downward a distance of y = 1.90 m . The spring has a spring constant of k = 22.5 N/m . The distance a is given as 1.10 m. The datum for gravitational potential energy is set at the horizontal line through A and B.

                                                                                                                     

 

 

Determine the magnitude of the velocity of the collar at C when the effects of friction are neglected. The spring is initially unstretched when the collar is at A.

Determine the magnitude of the average friction force exerted on the collar when the velocity of the collar at C is 3.66 m/s . The spring is initially unstretched when the collar is at A.

Determine the magnitude of the average friction force exerted on the collar when the velocity of the collar at C is 3.66 m/s and the spring has an unstretched length of 0.65 m

see attached figure.

a
B.
Transcribed Image Text:a B.
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