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# ppppp.pdf - Advanced Placement PHYSICS 1 Rotational Motion...

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Student 201 4 -201 5 PHYSICS 1 Rotational Motion Advanced Placement

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Copyright © 2013 National Math + Science Initiative ® , Inc., Dallas, TX. All rights reserved. Rotation I: Rotational Kinematics & Energy F = force that is being applied to object (N) r = displacement from the point of rotation to the point of force application (m) θ = angle between the force vector and the displacement vector Relationships between the linear and angular variables when an object is rotating around a fixed axis or rolling without slipping. Where r = the radius of the rotating object in meters a T = tangential acceleration in m/s 2 a C = centripetal acceleration (also called radial acceleration) in m/s 2 Key Formulas and Relationships Linear and Angular analogs – kinematics and energy equations Linear Angular Constant Motion x = x o + vt θ = θ o + ω t Motion with Constant Acceleration v = v o + at x = 1 2 ( v o + v ) t x = x o + v o t + 1 2 at 2 v o 2 = v 2 + 2 ax ω = ω o + α t θ = 1 2 ( ω o + ω ) t θ = θ o + ω o t + 1 2 α t 2 ω o 2 = ω 2 + 2 αθ 2 nd Law of Motion a = Σ F m = F net m α = Σ τ I = τ net I Kinetic Energy and Power Translational kinetic energy Rotational kinetic energy 2 2 1 mv K = 2 2

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