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Current Attempt in Progress The uniform semicircular bar of radius r = 120 mm and mass m = 3.2 kg rotates freely about a horizontal axis through the pivot O. The bar is initially held in position 1 against the action of the torsional spring and then suddenly released. Determine the spring stiffness KT which will give the bar a counterclockwise angular velocity w = 4.3 rad/s when it reaches position 2, at which the spring is undeformed. KT Part 1 Answers: Measure gravitational potential energy from point O. Find the gravitational potential energy in positions 1 and 2. Vg1 = Vg3= m i i eTextbook and Media 2 Save for Later Nom Nom Attempts: 0 of 3 used Submit Answer

Current Attempt in Progress The uniform semicircular bar of radius r = 120 mm and mass m = 3.2 kg rotates freely about a horizontal axis through the pivot O. The bar is initially held in position 1 against the action of the torsional spring and then suddenly released. Determine the spring stiffness KT which will give the bar a counterclockwise angular velocity w = 4.3 rad/s when it reaches position 2, at which the spring is undeformed. KT Part 1 Answers: Measure gravitational potential energy from point O. Find the gravitational potential energy in positions 1 and 2. Vg1 = Vg3= m i i eTextbook and Media 2 Save for Later Nom Nom Attempts: 0 of 3 used Submit Answer

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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please answer part one of the question

Current Attempt in Progress The uniform semicircular bar of radius r = 120 mm and mass m = 3.2 kg rotates freely about a horizontal axis through the pivot O. The bar is initially held in position 1 against the action of the torsional spring and then suddenly released. Determine the spring stiffness KT which will give the bar a counterclockwise angular velocity w = 4.3 rad/s when it reaches position 2, at which the spring is undeformed. Part 1 Answers: Vg1 = m Measure gravitational potential energy from point O. Find the gravitational potential energy in positions 1 and 2. Vg3= i i eTextbook and Media 2 Save for Later A' N•m N•m Attempts: 0 of 3 used Submit Answer
Transcribed Image Text:Current Attempt in Progress The uniform semicircular bar of radius r = 120 mm and mass m = 3.2 kg rotates freely about a horizontal axis through the pivot O. The bar is initially held in position 1 against the action of the torsional spring and then suddenly released. Determine the spring stiffness KT which will give the bar a counterclockwise angular velocity w = 4.3 rad/s when it reaches position 2, at which the spring is undeformed. Part 1 Answers: Vg1 = m Measure gravitational potential energy from point O. Find the gravitational potential energy in positions 1 and 2. Vg3= i i eTextbook and Media 2 Save for Later A' N•m N•m Attempts: 0 of 3 used Submit Answer
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part 3 please

Part 3 Find the potential energy in the torsional spring in position 1. Answer: V₁1 = Save for Later i N•m Attempts: 0 of 3 used Submit Answer
Transcribed Image Text:Part 3 Find the potential energy in the torsional spring in position 1. Answer: V₁1 = Save for Later i N•m Attempts: 0 of 3 used Submit Answer
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part 2 please

Part 2 Find the kinetic energy in positions 1 and 2. Answers: T₁= T₂= i i eTextbook and Media Save for Later kg.m²/s² kg.m²/s² Attempts: 0 of 3 used Submit Answer
Transcribed Image Text:Part 2 Find the kinetic energy in positions 1 and 2. Answers: T₁= T₂= i i eTextbook and Media Save for Later kg.m²/s² kg.m²/s² Attempts: 0 of 3 used Submit Answer
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