Final answer:
The equation for the velocity component in the x-direction is Vx = v × cos(θ), where v is the velocity magnitude and θ is the angle with the x-axis; for movement along the x-axis, it simplifies to V1x = V1.
Step-by-step explanation:
To calculate the velocity component in the x-direction, you can use the equation Vx = v × cos(θ), where v is the magnitude of the velocity and θ (theta) is the angle that the velocity vector makes with the x-axis. If an object is moving only along the x-axis, then θ is zero, and the equation simplifies to V1x = V1, since cos(0) equals 1. This formula is particularly useful in scenarios where an object is moving at an angle and its velocity needs to be resolved into horizontal (Vx) and vertical components (Vy).