physics cheat sheet Exam 2

# physics cheat sheet Exam 2 - REGULAR EQUATIONS v = d/t a =...

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REGULAR EQUATIONS v = d/t a = v/t d = vt + d i v f = at + v i v f 2 = 2ad + v i 2 d = ½(v i + v f )t d = 1/2at 2 + v i t + d i PROJECTILE EQUATIONS v x = vcos( ) Ѳ v y = vsin( ) Ѳ Range = v 2 sin(2 )/g Ѳ MaxRange = v 2 /g t = Range/vcos( ) Ѳ = 1/2sin Ѳ -1 ((Range*g)/v 2 ) Height = Hi + (v 2 sin 2 ( ))/2g Ѳ FORCE F = ma F N = mgcos( ) Ѳ F II = mgsin( ) Ѳ F f = µF N µ s = tan( ) Ѳ F drag = Kv 2 Terminal Velocity = √(mg/K) K = ½ c d Ap c d = coefficient of drag A = area P = density of air (usually 1) T = mg/2n n = # of loops ENERGY KE = 1/2mv 2 KE = |F g dot F II | α = 90- Ѳ W = Fdcos( ) Ѳ W = ∫F(x) in distance interval PE = mgh S f = ½ kx 2 P = W/t P = Fvcos( ) or P = F dot v Ѳ F = - derivative of PE TotalME = ½ Ak 2 A = amplitude mass on spring MOMENTUM/COLLISIONS p = mv F = derivative of p KE = p 2 /2m Impulse = Δp = FΔt = mΔv Impulse = ∫F(x) time interval Momentums/velocities after a totally inelastic collision p f1 = ((m 1 – m 2 )/(m 1 +m 2 ))p i1 + (2m 1

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physics cheat sheet Exam 2 - REGULAR EQUATIONS v = d/t a =...

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