# Lect11 - Physics 101 Lecture 11 Centripetal Force q q Brie...

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Physics 101: Lecture 11, Pg 1 Physics 101: Physics 101: Lecture 11 Lecture 11 Centripetal Force Centripetal Force Brief Review of Chapters 1-4 Textbook Chapter 5 Uniform circular motion : satellites in circular orbits, apparent weightlessness and artificial gravity

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Physics 101: Lecture 11, Pg 2 Centripetal Force Centripetal Force R a c 2 ϖ = R T a c 2 2 = π R a c 2 v = Define frequency f , period T , angular velocity ϖ : ( 29 R f a c 2 2 = Centripetal acceleration: Acceleration is the result of a net-force acting on an object. In case of a c this net-force is called centripetal force, F c : Magnitude of F c : F c = Σ F= m a c = m v 2 /R Direction of F c : always points towards the center of the circle The period T is the time required to travel once around the circle, ie to make one complete revolution: T=2 π R/v
Physics 101: Lecture 11, Pg 3 Satellites in Circular Orbits Satellites in Circular Orbits Satellites in circular orbits are examples of uniform circular motion. What provides the centripetal force ?

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Lect11 - Physics 101 Lecture 11 Centripetal Force q q Brie...

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