The uniform semicircular bar of radius r = 145 mm and mass m = 3.0 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 = 4.8 rad/s when it reaches position 2, at which the spring is undeformed. A KT Part 1 m 2 A' Measure gravitational potential energy from point O. Find the gravitational potential energy in positions 1 and 2.
The uniform semicircular bar of radius r = 145 mm and mass m = 3.0 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 = 4.8 rad/s when it reaches position 2, at which the spring is undeformed. A KT Part 1 m 2 A' Measure gravitational potential energy from point O. Find the gravitational potential energy in positions 1 and 2.
Related questions
Question
![The uniform semicircular bar of radius r = 145 mm and mass m = 3.0 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 = 4.8 rad/s when it reaches position 2, at which the spring is undeformed.
A
KT
Part 1
Answers:
Vg1 =
m
Vg3 =
1
2
Measure gravitational potential energy from point O. Find the gravitational potential energy in positions 1 and 2.
A'
(0)
N•m
N•m](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbd5e8ef4-7fd3-4406-98c9-29d0ba5797bb%2F71f211e2-c316-44ad-be00-1d577213f74f%2F5u1s00pg_processed.png&w=3840&q=75)
Transcribed Image Text:The uniform semicircular bar of radius r = 145 mm and mass m = 3.0 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 = 4.8 rad/s when it reaches position 2, at which the spring is undeformed.
A
KT
Part 1
Answers:
Vg1 =
m
Vg3 =
1
2
Measure gravitational potential energy from point O. Find the gravitational potential energy in positions 1 and 2.
A'
(0)
N•m
N•m
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 4 steps with 6 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)