Physics 121 - Formula Sheet.doc

# Physics 121 - Formula Sheet.doc - Formulas and Constants...

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Formulas and Constants PHY 121 Formulas & Constants Page 1 of 2 Physics formulas Velocity x v t Acceleration v a t Displacement (const a ) 1 2 0 2 x v t at Velocity (const a ) 0 2 2 0 2 v v at v v ax Newton’s 2 nd Law net F ma Static Friction max sf s N F F Kinetic Friction kf k N F F Newton’s Law of Gravity 1 2 2 G Gm m F r Weight G F mg Centripetal force c c F ma Centripetal acceleration 2 c v a r Spring force s F kx Work by a force cos W F x Impulse J Ft Work (net) on a particle W KE   Kinetic energy 1 2 2 KE mv Potential energy (grav’l) G PE mgh Potential energy (elastic) 1 2 2 s PE kx Power cos W P Fv t Conservation of energy i f E E Momentum p mv Impulse-Momentum Th’m J p   Conservation of momentum i f p p Center of mass 1 1 2 2 3 3 1 2 3 cm m x m x m x x m m m Physics formulas (continued) Angle s r

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