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

[magicjambon]

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

 

[magicjambon]

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

 

[PhanthomJay]

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...

 

[magicjambon]

thanks for your reply, in relation to checking the equation - I am not sure what you mean sorry

 

[PhanthomJay]

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.

 

[magicjambon]

ahh right thanks