4. (ROTATIONAL DYNAMICS) The figure below shows particles 1 and 2, with masses m1 = 0.05 kg and m₂ = 0.1 kg, respectively, attached to the ends of a rigid massless rod of length L1 + L2, with L₁ 20 cm and L2 80 cm. The rod is held horizontally on the fulcrum (or triangular support) and then released. (a) What is the magnitude of the tangential acceleration of particle 1 immediately after the rod is released? (b) What is the magnitude of the tangential acceleration of particle 2 immediately after the rod is released? (c) Where would the fulcrum have to be located in order for the system to instead balance (rather than rotate) when released? Find and report the necessary distance of the fulcrum from particle 1. +4+ L₂ 2
4. (ROTATIONAL DYNAMICS) The figure below shows particles 1 and 2, with masses m1 = 0.05 kg and m₂ = 0.1 kg, respectively, attached to the ends of a rigid massless rod of length L1 + L2, with L₁ 20 cm and L2 80 cm. The rod is held horizontally on the fulcrum (or triangular support) and then released. (a) What is the magnitude of the tangential acceleration of particle 1 immediately after the rod is released? (b) What is the magnitude of the tangential acceleration of particle 2 immediately after the rod is released? (c) Where would the fulcrum have to be located in order for the system to instead balance (rather than rotate) when released? Find and report the necessary distance of the fulcrum from particle 1. +4+ L₂ 2
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter12: Rotation I: Kinematics And Dynamics
Section: Chapter Questions
Problem 78PQ
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please write out explanations to make it easy to understand
![4. (ROTATIONAL DYNAMICS) The figure below shows particles 1 and 2, with masses
m₁ =
0.05 kg and m2 = 0.1 kg, respectively, attached to the ends of a rigid massless
rod of length L₁ + L2, with L₁ = 20 cm and L2 = 80 cm. The rod is held horizontally on
the fulcrum (or triangular support) and then released.
(a) What is the magnitude of the tangential acceleration of particle 1 immediately after
the rod is released?
(b) What is the magnitude of the tangential acceleration of particle 2 immediately after
the rod is released?
(c) Where would the fulcrum have to be located in order for the system to instead balance
(rather than rotate) when released? Find and report the necessary distance of the
fulcrum from particle 1.
|4+
-L2
2
H](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4143f45a-5c96-4449-af2f-abda697f3e91%2F8141603f-de51-45c5-aee3-32ae96af0a9b%2F596naeq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4. (ROTATIONAL DYNAMICS) The figure below shows particles 1 and 2, with masses
m₁ =
0.05 kg and m2 = 0.1 kg, respectively, attached to the ends of a rigid massless
rod of length L₁ + L2, with L₁ = 20 cm and L2 = 80 cm. The rod is held horizontally on
the fulcrum (or triangular support) and then released.
(a) What is the magnitude of the tangential acceleration of particle 1 immediately after
the rod is released?
(b) What is the magnitude of the tangential acceleration of particle 2 immediately after
the rod is released?
(c) Where would the fulcrum have to be located in order for the system to instead balance
(rather than rotate) when released? Find and report the necessary distance of the
fulcrum from particle 1.
|4+
-L2
2
H
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