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Two identical slender rods AB and BC (MAB = MBC = 1.5 kg) are welded together to form an L shaped assembly. The assembly is pressed against a spring at D and released from the position shown (Position 1). The assembly then passes through the position where rod AB forms an angle of 60° counterclockwise from the horizontal (Position 2). Knowing that the maximum angle of rotation of the assembly in its current motion is 90° counterclockwise (Position 3), answer the following. D B -0.4 m A 0.4 m 3. Which of the following best approximates the value of the potential energy of the system at Position 2 with the datum at the level of pin B? NOTE: ANSWER IS NOT -2.943 NOTE: ANSWER IS NOT -2.15J and +2.15J is not in the options 4. Which of the following best approximates the total mechanical energy at Position 3? 5. Which of the following best approximates the angular velocity of the system at Position 2? NOTE: ANSWER IS NOT 7.09 rad/s

Two identical slender rods AB and BC (MAB = MBC = 1.5 kg) are welded together to form an L shaped assembly. The assembly is pressed against a spring at D and released from the position shown (Position 1). The assembly then passes through the position where rod AB forms an angle of 60° counterclockwise from the horizontal (Position 2). Knowing that the maximum angle of rotation of the assembly in its current motion is 90° counterclockwise (Position 3), answer the following. D B -0.4 m A 0.4 m 3. Which of the following best approximates the value of the potential energy of the system at Position 2 with the datum at the level of pin B? NOTE: ANSWER IS NOT -2.943 NOTE: ANSWER IS NOT -2.15J and +2.15J is not in the options 4. Which of the following best approximates the total mechanical energy at Position 3? 5. Which of the following best approximates the angular velocity of the system at Position 2? NOTE: ANSWER IS NOT 7.09 rad/s

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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Two identical slender rods AB and BC (MAB = MBC = 1.5 kg) are welded together to form an L shaped assembly. The assembly is pressed against a spring at D and released from the position shown (Position 1). The assembly then passes through the position where rod AB forms an angle of 60° counterclockwise from the horizontal (Position 2). Knowing that the maximum angle of rotation of the assembly in its current motion is 90° counterclockwise (Position 3), answer the following. h D B O -0.4 m A 0.4 m 3. Which of the following best approximates the value of the potential energy of the system at Position 2 with the datum at the level of pin B? NOTE: ANSWER IS NOT -2.943 NOTE: ANSWER IS NOT -2.15J and +2.15J is not in the options 4. Which of the following best approximates the total mechanical energy at Position 3? 5. Which of the following best approximates the angular velocity of the system at Position 2? NOTE: ANSWER IS NOT 7.09 rad/s
Transcribed Image Text:Two identical slender rods AB and BC (MAB = MBC = 1.5 kg) are welded together to form an L shaped assembly. The assembly is pressed against a spring at D and released from the position shown (Position 1). The assembly then passes through the position where rod AB forms an angle of 60° counterclockwise from the horizontal (Position 2). Knowing that the maximum angle of rotation of the assembly in its current motion is 90° counterclockwise (Position 3), answer the following. h D B O -0.4 m A 0.4 m 3. Which of the following best approximates the value of the potential energy of the system at Position 2 with the datum at the level of pin B? NOTE: ANSWER IS NOT -2.943 NOTE: ANSWER IS NOT -2.15J and +2.15J is not in the options 4. Which of the following best approximates the total mechanical energy at Position 3? 5. Which of the following best approximates the angular velocity of the system at Position 2? NOTE: ANSWER IS NOT 7.09 rad/s
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