Science
posted by Jessica .
A father swings his child around in a circle. The source of the centripetal force that keeps the child moving in a circle is _____.
tension
friction
weight
gravity

Do some thinking about it and let us know your opinion.
Weight and gravity are the same thing. How would they help the swinging process? What is the usual role of friction?
What kind of force does the father exert on the child? 
friction

yo mama house
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