2-D Formulas & Equations Ch. 3 Test - Formula Sheet Kinematic Equations in Two Dimensions Δx = v ix t + 21 ax t2 Δy = v iy t + 21 ay t2 v x = v ix + ax t v y = v iy + ay t Δx = 21 (v ix + v x )t Δy = 21 (v iy + v y )t v x 2 = v ix 2 + 2aΔx v y 2 = v iy 2 + 2ay Δy Δx = v x t ­ 2 1 2 ax t Δy = v y t ­ 2 1 2 ay t Projectile Motion Equations # 1 Δx = v ix t Δy = v iy t + 21 ay t2 v x = v ix v y = v iy + ay t Δx = 21 (v ix + v x )t Δy = 21 (v iy + v y )t v x 2 = v ix 2 v y 2 = v iy 2 + 2ay Δy Δx = v x t Δy = v y t ­ 2 1 2 ay t Projectile Motion Equations #2 Δx = v ix t Δy = 21 ay t2 v x = v ix v y = ay t v y 2 = 2ay Δy Projectile Motion Equations #3 Δx = v i cosθt Δy = v i sinθt + 21 ay t2 v x = v ix = v i cosθ v y = v i sinθ + ay t v y 2 = (v i sinθ)2 + 2ay Δy 2-D Formulas & Equations Vector Formulas