A force F is slowly increased as it is applied to bar Determine the change in potential en- AB of Fig. ergy of the system with respect to a reference at 60 = 0° as the bar is rotated to the position 0 = 30°. The bar is in equi- librium at 0 = 0° with F = 0. The spring constant o equals 500 N/m. F Im B m = 30 kg
A force F is slowly increased as it is applied to bar Determine the change in potential en- AB of Fig. ergy of the system with respect to a reference at 60 = 0° as the bar is rotated to the position 0 = 30°. The bar is in equi- librium at 0 = 0° with F = 0. The spring constant o equals 500 N/m. F Im B m = 30 kg
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

Transcribed Image Text:A force F is slowly increased as it is applied to bar
Determine the change in potential en-
AB of Fig.
ergy of the system with respect to a reference at 60 = 0° as
the bar is rotated to the position 0 = 30°. The bar is in equi-
librium at 0 = 0° with F = 0. The spring constant o equals
500 N/m.
F
Im
B
m = 30 kg
Expert Solution

Step 1
Draw the free-body diagram of the rod AB.
Step 2
At θ = 0°,
Take moment about point A.
Write the expression of the initial deflection of the spring.
Write the expression of the final deflection of the spring.
Write the expression of the potential energy of the spring.
Step by step
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