Centripetal Force Experiment question

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Homework Help Overview

The discussion revolves around an experiment involving centripetal force, where two masses are connected by a string, with one mass swung in a circular motion while the other hangs vertically. Participants are exploring the implications of hand movement during the experiment on the results, particularly in relation to the centripetal force formula.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants are questioning how the movement of the hand affects the results of the experiment and the measurement of the radius (r). There is also curiosity about the effects observed when the hand stops moving in small circles.

Discussion Status

The discussion is ongoing, with participants raising questions about the measurement of radius and its potential changes due to hand movement. Some insights have been shared regarding the experimental setup, but no consensus has been reached.

Contextual Notes

Participants mention that the radius was given as 0.20 m and that they attempted to maintain this distance while swinging the mass. There is uncertainty about how hand movement might influence this measurement.

Stardrops
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Homework Statement


We had an experiment where you have two masses on either side of a string and you swing one in a circle,while the other hangs vertically down(providing Fg).

"When you swing the mass in a circle, your hand most likely moved in a small circle. What effect does this have on the results?"

Homework Equations


I'm guessing they are asking -> How will it affect Centripetal force formula F=(mv^2)/r


The Attempt at a Solution


Not really quite sure what your hand does to it though :rolleyes:
 
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Stardrops said:

Homework Statement


We had an experiment where you have two masses on either side of a string and you swing one in a circle,while the other hangs vertically down(providing Fg).

"When you swing the mass in a circle, your hand most likely moved in a small circle. What effect does this have on the results?"

Homework Equations


I'm guessing they are asking -> How will it affect Centripetal force formula F=(mv^2)/r


The Attempt at a Solution


Not really quite sure what your hand does to it though :rolleyes:

How did you measure r in the lab? would it change this measurement?
 
You might also ask yourself what happened when you stopped making the small circles with your fingers/hand. Did you notice anything about the motion and path of the mass that was making the circular path that was different if you just let it go by itself after getting it started?
 
pgardn said:
How did you measure r in the lab? would it change this measurement?

The r was given .20 m and we made a mark and tried to keep the mass twirling that dist. away from the tube we were holding on to
 

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