Does mass affect the period of a pendulum attached to an elastic string?

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    Pendulum Period
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Homework Help Overview

The discussion revolves around the effect of mass on the period of a pendulum attached to an elastic string. Participants are exploring the relationship between mass, string elasticity, and pendulum motion.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • The original poster attempts to understand how adding mass to a pendulum affects its period, questioning whether mass influences the period. Some participants suggest deriving the formula for the period of a simple pendulum and drawing free body diagrams to analyze the motion. Others express uncertainty about the elasticity of the string and its implications for the period.

Discussion Status

Participants are actively engaging with the problem, raising questions about the derivation of the period formula and the role of string elasticity. There is a recognition of the need for further clarification on the relationship between mass and period, as well as the effect of the string's properties.

Contextual Notes

Some participants note that they have not yet learned the necessary derivations and are unsure about the implications of the increased length of the string due to added mass. There is also a lack of clarity regarding whether the string is elastic and how that affects the analysis.

lphalo
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if if we have a string and a object with mass m connected to it , it does extend for 11 cm (string) . if we put another object with the same mass m , what will be the period of that ( of the 2 objects in the string) . please explain does mass affect the period ?
thnx
 
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Hint: Can you derive the formula for the period of a simple pendulum? Draw a free body diagram of a weight on a string not quite in the vertical position. Write the equation of motion. What can you conclude from the equation you derive?
 
LawrenceC said:
Hint: Can you derive the formula for the period of a simple pendulum? Draw a free body diagram of a weight on a string not quite in the vertical position. Write the equation of motion. What can you conclude from the equation you derive?

i cannot derive , cause we didnt learn it , in one conclusion that i made it 'is 2 times more than the first' but i do not have a idea if its true and even if its true is my equation right :S
 
LawrenceC said:
Hint: Can you derive the formula for the period of a simple pendulum? Draw a free body diagram of a weight on a string not quite in the vertical position. Write the equation of motion. What can you conclude from the equation you derive?

wait , even if we didnt learn this part i saw that for a string the T is 2pi square root of l /square root of g , it doesn't affect,, hmm but what must i do to find the period , i only have the increased'' length of 11cm and not the actual length before that
 
Is the string elastic and stretches? I'm not sure I gather that from the problem statement.
 

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