PHYS-101 Formula Sheet for Major Exam II, Summaries of Physics

Download PHYS-101 Formula Sheet for Major Exam II and more Summaries Physics in PDF only on Docsity! PHYS-101 Formula Sheet for Major Exam II g = 9.80 m/s2 r = r0 + vot + ½ at2 v = vo + at v2 = v0 2 + 2a(x-x0) x - xo = (vo + v)t 2 ar = v2 r , at = dv dt rt aaa += ∑ == dt pdamF fk = µk N fs ≤ µsN W = F . s if F = Constant sdFW ∫ •= cosθ BA BA =⋅ 2 2 12 2 1 ifnet mvmvKW −=∆= P = dW dt = F . v Us = 1 2 kx2 , Fs = - kx Ug = mgy E = K +U Wc = - ∆U ∆E = ∆K + ∆U = -fkd p = mv I = ∆p = F∆t = F dt p 1i + p 2i = p 1f + p 2f cmext aMF =∑ Icm(disk) = (1/2)MR2 Icm(sphere) = (2/5)MR2 Rcm = Σmiri Σmi = 1 M r dm v cm = Σmivi Σmi ; pcm = Σmi vi dt d dt d ωαθω == ; s = r θ , v = r ω 2; ωα rara rt == If α = constant, ω = ω o + α t θ = θo + ωot + 1 2 α t2 ω2 = ω0 2 + 2α(θ-θ0) I = Σ mi ri 2 = r2 dm IP = Icm +M h2 τ = r x F A x B = AB sin θ P = dW dt = τ ω For a solid rotating about a fixed axis, Krot = 1 2 I ω2 , Lz = I ω W = τ d θ L = r x p = m r x v τ = dL dt ατ I dt dL ext ==∑ For static equilibrium, ΣF = 0 ; Στ = 0 VV P VV F/A hx F/A LL F/A o // B; / G; / ∆ ∆ −= ∆ −= ∆ = ∆ = E Icm(thin rod) = (1/12)ML2 Icm(hoop) = MR2