# Physics

 π = ___ degrees 180 ω: angular speed. Similar to velocity ω = Δθ/Δt Vt= rω (tangential speed) P: Period. Time it takes to complete one revolution. f: Frequency. How many revolutions per second Formula for frequency: f=1/T α: angular acceleration Formula for angular acceleration α=Δω/Δt Ac: centripetal acceleration. Moves towards center of circle. Law of gravitation Fg=Gm1m2/r2 r: disance between m1 and m2G=6.67 x 10-11 Fc: Centripetal Force. Net force pointing towards center Formula for Centripetal Force: Fc=mac Fc=mv2/r Formula for Torque τ = r⊥F = rFsinθ Torque is positive if counterclockwise Torque is negative if clockwise Translational Motion normal velocity Rotational Motion angular velocity Newton's 2nd Law: Rotational Form Στ=Iα Rotational Kinetic Energy Kr=1/2Iω2 Translational Kinetic Energy Kt=1/2mv2 Conservation of Angular Momentum Ioωo=Iω θ units radians ω units rad/s α units rad/s2 Authorandreabyerly ID46840 Card SetPhysics DescriptionPhysics- Circular Movement Updated2010-11-02T23:21:33Z Show Answers