What is the source of the centripetal force for this action? ‚Äč

Physics
Tutor: None Selected Time limit: 1 Day

Question:

A student swings his keychain around in a circle. What is the source of the centripetal force for this action?

Options: 

-tension

-gravity

-friction

-weight

Jan 20th, 2015

Please note that the centripetal force is applied by the string on the keychain, namely, the centripetal force is the tension of the string which connects tha hand of the student to its keychain

Jan 20th, 2015

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Jan 20th, 2015
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Jan 20th, 2015
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