What is the source of the centripetal force for this action? ​

User Generated

yvoensbeqr

Science

Description

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

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Explanation & Answer

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


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