How Can I Prove the Centripetal Force Equation f=mrw^2 Using Experiments?

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Homework Help Overview

The discussion revolves around proving the centripetal force equation f=mrω² using experimental methods, specifically through the use of a rotational air table and a whirly string setup. Participants express confusion regarding the variables involved and how to effectively demonstrate the relationship outlined in the equation.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss changing variables such as mass, radius, and angular velocity in their experiments to observe corresponding changes in force. There is uncertainty about how to structure these experiments and the meaning behind verifying the equation itself.

Discussion Status

Some participants have offered suggestions regarding the manipulation of variables, while others have raised questions about the accuracy of the equation and its implications for the experiments. The conversation reflects a mix of exploratory ideas and clarification requests without reaching a consensus.

Contextual Notes

There is mention of potential confusion regarding the equation's formulation, with one participant pointing out a possible typographical error in the equation as presented. This indicates a need for clarity on the definitions and relationships within the equation itself.

magicjambon
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Hi there, sorry if this is not in the right section, but i have to do an investigation, i have chosen to prove f=mrw2. I will be using a rotational air table, and this the handheld whirly string and mass experiment - sorry to be vague. basically i am not the best physicist so i would very much appreciate if anyone could tell me what variable to change, and the consequent desired effect in my endevour to prove the equation. I am confused. Thanks
 
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Can somebody please tell me how i can prove f=mrw? i have rotational air table and a manual method available. Can i for each experiment change the variables of the equation and show the force change and show how it complies? For instance in one experiment i will alter mass, another i will alter radius and the last angular velocity? Thanks
 
The proof is in the calculus; the lab results compare your measurements with the calculated ones. Better check that equation though before you compare anything. Altering mass, radius, and angular velocity is a very good idea...
 
thanks for your reply, in relation to checking the equation - I am not sure what you mean sorry
 
magicjambon said:
thanks for your reply, in relation to checking the equation - I am not sure what you mean sorry
In post 2 I guess you made a typo error. F = m(w^2)r.
 
ahh right thanks
 

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