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# UCM 3

## on Mar 07, 2008

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## UCM 3Presentation Transcript

• Uniform Circular Motion
• Uniform Circular Motion
• - Describes motion in which an object moves at a constant speed along a circular path.
• But how does it work?
• Uniform circular motion is caused by the effect a force directed towards the center of the object that is spinning, the centripetal force.
• Acceleration
• Like the centripetal force, the acceleration is also always pointed towards the center.
• When an object changes direction, it accelerates, even if the velocity does not change.
• Therefore, we know that the object involved in uniform circular motion is always accelerating.
•
• The velocity of the object, unlike the centripetal force and acceleration, is not constantly pointed towards the center.
• In fact, the velocity of the object is always directed towards a different point.
• The velocity is always pointed tangent to the circle where the object is in its motion.
• The Equation For Centripetal Force
• F c=( m )( a c)
• Where:
• F c = Centripetal Force
• m= Mass Of Object
• a c = Centripetal Acceleration
• I hope this PowerPoint helped you in your understanding of Uniform Circular Motion!