Q7: The structure consists of a collar at B that is free to slide along a straight fixed bar AC. Mounted on the collar is a frictionless pulley, around which a cable supporting a 5 lb weight is wrapped. The collar is further supported by a bar BD. (a) If a = 0°, determine the force in bar BD needed to keep the system in equilibrium. (b) Determine the value of a, that will provide for the smallest force in bar BD, and determine the value of this force. E B 30° 5 lb

Q7: The structure consists of a collar at B that is free to slide along a straight fixed bar AC. Mounted on the collar is a frictionless pulley, around which a cable supporting a 5 lb weight is wrapped. The collar is further supported by a bar BD. (a) If a = 0°, determine the force in bar BD needed to keep the system in equilibrium. (b) Determine the value of a, that will provide for the smallest force in bar BD, and determine the value of this force. E B 30° 5 lb

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

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.

Question

Please solve it correctly and double-check the solution. I need the correct solution. Thank you

Q7: The structure consists of a collar at B that is free to slide along a straight fixed bar AC.
Mounted on the collar is a frictionless pulley, around which a cable supporting a 5 lb weight is
wrapped. The collar is further supported by a bar BD.
(a) If a = 0°, determine the force in bar BD needed to keep the system in equilibrium.
(b) Determine the value of a, that will provide for the smallest force in bar BD, and determine
the value of this force.
E
B
30°
5 lb

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Part 2 Set up a spreadsheet solution to this problem. This will require that you derive one formula to express the relationship between the friction coefficient, the spring constant, and the spring compression; and a second formula to find the cost of using different slide and spring types. Set up your spreadsheet as shown below. You can fill in the "Acceptable?" column manually, rather than using a formula. Turn in a copy of your spreadsheet/Matlab work (solve for $) Friction Spring Constant Spring Compression M k 0.1 0.1 0.1 0.2 0.2 0.2 50 100 150 50 100 150 4 Part 3 Your boss has decided to look at a second option. The spring mechanism will be replaced by a drop box. After leaving the slide, the blocks will travel 5 horizontal feet through the air and pass through a hole into the drop box. Using the slide you selected above, determine how far below the slide (h) to place the hole in the drop box. Yo = 5.2017/5 BLADE 2 RAMPE SLIDE 8⁰ SLIDE Acceptable? (Yes or No) $' Cost 51 In DROP…
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