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
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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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
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.

Mechanical Engineering homework question answer, step 1, image 1

Step 2

At θ = 0°,

Take moment about point A.

Mechanical Engineering homework question answer, step 2, image 1

Write the expression of the initial deflection of the spring.

Mechanical Engineering homework question answer, step 2, image 2

Write the expression of the final deflection of the spring.

Mechanical Engineering homework question answer, step 2, image 3

Write the expression of the potential energy of the spring.

Mechanical Engineering homework question answer, step 2, image 4

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