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You are holding a thin and weightless bar on your head (see figure 2.1). On the extremity A, the bar is attached to an elastic spring with unstressed length of 1 m and spring constant, k = 50 N/m; on the other extremity D, the bar is against a wall. On point C, a force F is applied, forming a 45-degree angle with the bar. Assign the length AE according to the height of your body. (a) What is the magnitude of the force F for the bar to rest horizontally? (b) If the force F was removed, what support would you need in D in place of the

You are holding a thin and weightless bar on your head (see figure 2.1). On the extremity A, the bar is attached to an elastic spring with unstressed length of 1 m and spring constant, k = 50 N/m; on the other extremity D, the bar is against a wall. On point C, a force F is applied, forming a 45-degree angle with the bar. Assign the length AE according to the height of your body. (a) What is the magnitude of the force F for the bar to rest horizontally? (b) If the force F was removed, what support would you need in D in place of the

Elements Of Electromagnetics
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 2 You are holding a thin and weightless bar on your head (see figure 2.1). On the extremity A, the bar is attached to an elastic spring with unstressed length of 1 m and spring constant, k = 50 N/m; on the other extremity D, the bar is against a wall. On point C, a force F is applied, forming a 45-degree angle with the bar. Assign the length AE according to the height of your body. (a) What is the magnitude of the force F for the bar to rest horizontally? (b) If the force F was removed, what support would you need in D in place of the wall, in order to keep the bar at rest horizontally? Justify your suggestion(s). State and justify your assumptions and comment on your solutions. 2m 1m 1m AE = 1.58496 SE F B 45° 4m Figure 2.1 C D
Transcribed Image Text:Question 2 You are holding a thin and weightless bar on your head (see figure 2.1). On the extremity A, the bar is attached to an elastic spring with unstressed length of 1 m and spring constant, k = 50 N/m; on the other extremity D, the bar is against a wall. On point C, a force F is applied, forming a 45-degree angle with the bar. Assign the length AE according to the height of your body. (a) What is the magnitude of the force F for the bar to rest horizontally? (b) If the force F was removed, what support would you need in D in place of the wall, in order to keep the bar at rest horizontally? Justify your suggestion(s). State and justify your assumptions and comment on your solutions. 2m 1m 1m AE = 1.58496 SE F B 45° 4m Figure 2.1 C D
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