'''Centripetal force''' is a force that is always directed perpendicular to the velocity of an object.<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref>
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'''Centripetal force''' is a [[force]] that is directed perpendicular to the [[velocity]] of an object traveling in a circular path.<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref>
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The centripetal force is a required force to maintain a velocity in constant speed as it travels in a circular path. The direction of the force is inward, toward the center of the circular path.
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The requirement of a centripetal force for such an object can be satisfied by a gravitational, electromagnetic, or any other type of force.
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"Centripetal" is a term derived from the Latin words centrum (meaning "center") and petere (meaning "tend towards").