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Let's examine the beam more closely. a) What should be the value of F₂ if we want the support reaction at point B be equal to zero? b) Let's set the value of F₂ to be twice your result in section a. Determine the initial angular acceleration of the beam (i.e. at the instant t = 0). Linear mass density of the beam is 12 kg/m. For sections c...g, let's assume that 1) as the beam rotates, the angle 8 is the angle between the beam and ground level and 2) the attaching points of forces (on the beam) as well as the directions of forces remain unchanged. Also, notice that the mass of the beams can be neglected in prob a; the mass ofthe beam must be considered only in sections b...g. c) What is the angular velocity of the beam when = 30°?

Let's examine the beam more closely. a) What should be the value of F₂ if we want the support reaction at point B be equal to zero? b) Let's set the value of F₂ to be twice your result in section a. Determine the initial angular acceleration of the beam (i.e. at the instant t = 0). Linear mass density of the beam is 12 kg/m. For sections c...g, let's assume that 1) as the beam rotates, the angle 8 is the angle between the beam and ground level and 2) the attaching points of forces (on the beam) as well as the directions of forces remain unchanged. Also, notice that the mass of the beams can be neglected in prob a; the mass ofthe beam must be considered only in sections b...g. c) What is the angular velocity of the beam when = 30°?

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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F1=12, F2=3, F3=7, x1=2.9, x2=3.0, x3=1.1, x4=0.8

Let's examine the beam more closely. a) What should be the value of F₂ if we want the support reaction at point B be equal to zero? b) Let's set the value of F₂ to be twice your result in section a. Determine the initial angular acceleration of the beam (i.e. at the instant t = 0). Linear mass density of the beam is 12 kg/m. For sections c...g, let's assume that 1) as the beam rotates, the angle 8 is the angle between the beam and ground level and 2) the attaching points of forces (on the beam) as well as the directions of forces remain unchanged. Also, notice that the mass of the beams can be neglected in prob a; the mass ofthe beam must be considered only in sections b...g. c) What is the angular velocity of the beam when 0 = 30°? d) Calculate the magnitude of total acceleration of point B when e) Calculate the support reactions at A when 0 = 45°. f) What happens when 0 = 90°? g) Calculate the total work done between 0° ≤ 0 ≤ 90°. A X1 F₁ X₂ F₂ X3 60°. F3 B TIIT X4
Transcribed Image Text:Let's examine the beam more closely. a) What should be the value of F₂ if we want the support reaction at point B be equal to zero? b) Let's set the value of F₂ to be twice your result in section a. Determine the initial angular acceleration of the beam (i.e. at the instant t = 0). Linear mass density of the beam is 12 kg/m. For sections c...g, let's assume that 1) as the beam rotates, the angle 8 is the angle between the beam and ground level and 2) the attaching points of forces (on the beam) as well as the directions of forces remain unchanged. Also, notice that the mass of the beams can be neglected in prob a; the mass ofthe beam must be considered only in sections b...g. c) What is the angular velocity of the beam when 0 = 30°? d) Calculate the magnitude of total acceleration of point B when e) Calculate the support reactions at A when 0 = 45°. f) What happens when 0 = 90°? g) Calculate the total work done between 0° ≤ 0 ≤ 90°. A X1 F₁ X₂ F₂ X3 60°. F3 B TIIT X4
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