# The athlete feels a centrifugal force when whirling the hammer - is there always a centrifugal force associated with a centripetal force? [closed]

(this is a homework question)

To this, I would say that the centrifugal force is just the reactionary force of the centripetal force, which is causing the hammer to 'want' to move away.

Therefore, I would say that there is always a centrifugal force as it is just a reactionary force to centripetal force (even though its fictitious)

Basically, I want to know if this was correct. I have done some other reading, and I was wondering if the centrifugal force was instead caused by the tension on the string when the athlete was swinging the hammer around?

## closed as off-topic by David Z♦Mar 22 '15 at 11:50

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "Homework-like questions should ask about a specific physics concept and show some effort to work through the problem. We want our questions to be useful to the broader community, and to future users. See our meta site for more guidance on how to edit your question to make it better" – David Z
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• Hi Hugh, and welcome to Physics Stack Exchange! It seems that you have an answer already, so what is it that you want to ask? – David Z Mar 22 '15 at 11:50
• @David Z : I cant understand how this is a homework question. – Paul Mar 22 '15 at 11:55
• How does he experience the centrifugal force? What object applies that force on him? – Hugh Martini Mar 22 '15 at 11:58
• @Paul because the question starts off by saying "(this is a homework question)". I also could have closed it (the first version, prior to the edit) as "unclear what you're asking". – David Z Mar 22 '15 at 11:59
• @HughMartini The string tension is the centripetal force, yes. It points towards the center of the circular motion. As you say, the centrifugal force is non-existant. It is simply the feeling you have, when you are dragged by the centripetal force the opposite way - your body wants to stay where it is (because of its mass / inertia). – Steeven Mar 22 '15 at 12:04