Uniform Circular Motion PDF

Uniform Circular Motion Circular motion: when an object moves in a circular path Uniform circular motion: when it moves at a constant speed in a circle -Does direction stay the same or change? - Object experience inward acceleration Doesn’t change the speed of the object Centripetal...

Uniform Circular Motion Circular motion: when an object moves in a circular path Uniform circular motion: when it moves at a constant speed in a circle -Does direction stay the same or change? - Object experience inward acceleration Doesn’t change the speed of the object Centripetal Force Centripetal Acceleration: center pulling acceleration ○ Motion is always changing its velocity ○ Acceleration is pointed towards the center Centripetal force: the force that cause the acceleration Average Speed of an object in Circular Motion Example: If a 10 meter wire is swung in a circle and it takes 0.8 seconds for the wire to come all the way around, what is the speed that is experienced by Light Bulb A & Light Bulb B? (Light Bulb A is placed exactly halfway from the end of the wire) Equations Centripetal Force: Centripetal Acceleration  Example A runner moving at a speed of 8.8 m/s rounds a bend with a radius of 25m. What is the centripetal acceleration of the runner?  Centrifugal Force Fictitious or apparent force ○ Outward force experienced by an object in a rotating frame of reference. It’s being pushed away from the center When you are one a Gravitron you are experiencing centrifugal force. If you are watching someone on a Gravitron you are seeing centripetal force.