v_x = v \cdot \cos(\theta)

Tue, 05 May 2026 12:36:59 +0000

# Understanding vₓ = v · cos(θ): A Fundamental Vector Component in Physics and Engineering When studying vectors, one of the most essential concepts is resolving a vector into components—especially along the horizontal (x) direction. One of the foundational formulas used in physics and engineering is: ### vₓ = v · cos(θ) This equation represents the projection of a vector v onto the x-axis, where v is the magnitude of the vector, θ is the angle it makes with the horizontal axis, and vₓ is the horizontal component.