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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. B A n 0.4 m

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. B A n 0.4 m

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
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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. B A 1. Consider Position 2, which of the following force/s does/do work on Rod BC? 1. Weight of Rod AB II. Weight of Rod BC III. Force on the spring IV. The reactions at pin B ♦ 2. Which of the following expressions in terms of w2 gives the kinetic energy of the system at Position 2? w2 is the angular velocity of both rods at Position 2. (The angular velocity of rods AB and BC are equal) + -0.4 m 0.4 m
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. B A 1. Consider Position 2, which of the following force/s does/do work on Rod BC? 1. Weight of Rod AB II. Weight of Rod BC III. Force on the spring IV. The reactions at pin B ♦ 2. Which of the following expressions in terms of w2 gives the kinetic energy of the system at Position 2? w2 is the angular velocity of both rods at Position 2. (The angular velocity of rods AB and BC are equal) + -0.4 m 0.4 m
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why is there no translational component for the kinetic energy of this problem? thank you!

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why is there no translational part for the kinetic energy here? 

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