- #1
Samia qureshi
- 23
- 1
Member advised to use the homework template for posts in the homework sections of PF, and to choose descriptive thread titles.
Understanding the Differences between Bar and Simple Pendulums
- Thread starter Samia qureshi
- Start date
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Homework Help Overview
The discussion revolves around the differences between bar pendulums and simple pendulums, particularly focusing on their periods of oscillation and the underlying physics concepts such as moment of inertia and restoring torque.
Discussion Character
- Conceptual clarification, Assumption checking
Approaches and Questions Raised
- Participants explore the formulas for the periods of both types of pendulums, questioning the correctness of provided answers and discussing the implications of mass distribution in bar pendulums compared to simple pendulums.
Discussion Status
There is an ongoing examination of the differences between the two types of pendulums, with some participants providing references to external materials for further clarification. Multiple interpretations of the concepts are being explored, but there is no explicit consensus reached yet.
Contextual Notes
Participants reference specific formulas and external resources, indicating a reliance on established physics principles and texts. The discussion highlights the complexity of oscillatory motion in different pendulum types.
- #2
drvrm
- 960
- 214
i do not think your answer is correct
as T = 2.pi. Sqrt( 2.L / 3.g) so and angular frequency w = 2.pi / T so option b seems to be correct you can see hyperphysics site or
http://web.mit.edu/8.01t/www/materials/modules/chapter24.pdf
as T = 2.pi. Sqrt( 2.L / 3.g) so and angular frequency w = 2.pi / T so option b seems to be correct you can see hyperphysics site or
http://web.mit.edu/8.01t/www/materials/modules/chapter24.pdf
- #3
Samia qureshi
- 23
- 1
is not it the case similar to simple pendulum and time period for simple pendulum is T=2.pi sqrt(L/g) ?drvrm said:
- #4
drvrm
- 960
- 214
Samia qureshi said:
Bar pendulum is not similar to a simple pendlum as the masses are spread in a particular manner and it leads to moment of Inertia as it oscillates where as in simple pendulum mass is concentrated at a point at length L.
if you have analysed a compound pendulum or a rigid body hung from a point and oscillating then the picture of restoring torque and angular acceleration will be clear...see the reference of mit given above for detail. or consult a textbook dealing with oscillation of a rigid body from a fixed axis.
- #5
Samia qureshi
- 23
- 1
its clear now Thanks a globedrvrm said:
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