A barbell consists of two small balls, each with mass, m at the ends of a very low mass rod of length, d. The barbell is mounted on the end of a low-mass rigid rod of length, b. This apparatus is started in such a way that while the rod rotates clockwise with angular speed, w₁, the barbell rotates clockwise about its center with angular speed, w₂. B What is the total angular momentum of this system about point B? Lidal.3 = -2mb²w12-2m (2) w2² Lhotel,B-2mb-wy2-2m O Lotel-2mb (w₁ + ₂)2 O Lotal B-2md (w+w₂)2 2 w₁2

A barbell consists of two small balls, each with mass, m at the ends of a very low mass rod of length, d. The barbell is mounted on the end of a low-mass rigid rod of length, b. This apparatus is started in such a way that while the rod rotates clockwise with angular speed, w₁, the barbell rotates clockwise about its center with angular speed, w₂. B What is the total angular momentum of this system about point B? Lidal.3 = -2mb²w12-2m (2) w2² Lhotel,B-2mb-wy2-2m O Lotel-2mb (w₁ + ₂)2 O Lotal B-2md (w+w₂)2 2 w₁2

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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Conservation of Energy

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Question

A barbell consists of two small balls, each with mass, m at the ends of a very low mass rod of length, d. The barbell is
mounted on the end of a low-mass rigid rod of length, b. This apparatus is started in such a way that while the rod
rotates clockwise with angular speed, w₁, the barbell rotates clockwise about its center with angular speed, w₂.
lan
V
60₂
B
b
What is the total angular momentum of this system about point B?
O
Lotal = -2mb²w₁2-2m
Ltotol = -2mb-w₂2-2m
(2) ²0
W₂2
2
() w₁2
O Lotal.B-2mb² (wi+w₂)2
O Lotal = -2md (w₁ +20₂)2

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