Phys207 Formulas

# Phys207 Formulas - Formulas for Phys207 v = v0 at 1 Motion...

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a // r v a α ω RIGHT-Hand Rule τ G r G F G Initial Final Formulas for Phys207 1. Motion: () 0 22 0 2 00 = 2 1 if ave vv x dx dv vv a t v v a td t d t xx v t a t x a + Δ =+ = = = Δ + Δ = Projectile : 2 2 0 0 1 2 cos sin yy y x y xx x x y y y v t gt v v gt v v v x xv t θ = = + = = = Circular : 2 2 tot v aa a a r ⊥⊥ == + & 2. Forces: 12 21 net FF m a F F = Gravity : 11 E Wm g = , Normal : cos S Nm g = , Friction : Sk S f N μ = or (max) SS S f N = tan S = (incline) max S vr g = (curve) 3. Work/Energy: cos WFsF s =⋅ Δ=Δ JG JJG Scalar product : x xy y AB AB AB ⋅= + JG JG Net work : net WK Kinetic Energy : 2 1 2 Km v = Conservation: ext KU f s W Δ+ Δ+Δ= Potential Energy : G Um g h = (gravity) 2 1 2 S Uk x = (spring) 4. Impulse/Momentum: Impulse : net I Ft p = Δ GJ G J G Momentum : p mv = J GG or if 0 net f i f f i i net dp Fp p m v m v F dt =⇒ = = = Elastic collision: f i KK = 5. Rotational Motion: sr = , = , ar = & , 2 2 v r , 0 t ωα 2 1 2 tt θω + Moment of Inertia : ii I mr = 2 I mR β = for object ( = 1 for ring and = 0.5 for disk ) Rotational Kinetic Energy : 2 2 1 rot L KI I Total: 2 1 (1 ) 2 tot trans rot K m v = += + 6. Torque: sin rF r F I θα =× = = GGJ G J G Vector product : x x AB AB AB ×= JG 7. Angular Momentum: LrpI J G J G or = if 0 net f i f f i i net dL LL I I dt τω

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## This note was uploaded on 03/05/2012 for the course PHYSICS 207 taught by Professor D during the Spring '12 term at UVA.

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Phys207 Formulas - Formulas for Phys207 v = v0 at 1 Motion...

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