Centripetal force experiment help

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Discussion Overview

The discussion revolves around an experiment related to centripetal force, specifically focusing on the setup and methodology for measuring the relationship between time, length, and mass in a circular motion context. Participants seek clarification on how to prove a specific relationship using the experimental data collected.

Discussion Character

  • Homework-related
  • Mathematical reasoning

Main Points Raised

  • One participant describes the experimental setup and the steps involved in measuring mass, length, and time for a rubber bung in circular motion.
  • Another participant suggests solving equations for time as a function of length, indicating a mathematical approach to the problem.
  • A third participant proposes that the slope of the function relating time squared to length is equal to t²/L.
  • A later reply questions the definition of t², seeking clarification on its meaning in the context of the discussion.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the definition of t² and its implications for the experiment, indicating that the discussion remains unresolved.

Contextual Notes

There are limitations regarding the clarity of the relationship between the variables involved, as well as the definitions and assumptions underlying the mathematical expressions proposed.

kisha
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i am confused.i need help with this experiment.

experiment set up:
http://img155.imageshack.us/img155/4027/20120428151358.png

1.measure total mass M of the crocodile clip and load.(in gram)
2.measure a length L of the string from the glass tube.
3.hold the tube vertically and whirl the rubber bung around.
4.measure the time t required for the bung to complete 50 revolutions.
5.repeat step 2-3 using different L.
6.plot t^2 against L.
7.prove [PLAIN]http://img577.imageshack.us/img577/7543/20120428153604.png

how to prove[PLAIN]http://img577.imageshack.us/img577/7543/20120428153604.png by using Mg=mLω^2 and ω=2∏/T(period)?
 
Last edited by a moderator:
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Solve your equations for t(L). What is the slope of f(L)=t²(L)?
 
slope=t²/L
 
Well, yeah, but what's t²?
 

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