what do you mean by two dimensional motion

Two-dimensional motion means motion that happens in a plane , so the object moves in two directions at the same time, usually along perpendicular axes like horizontal (x) and vertical (y).

Quick Scoop: Simple Meaning

Think of drawing on a flat sheet of paper.
If an object’s position can change left–right and up–down, its motion is two-dimensional.

• In 1D motion, the object moves along a single straight line (only forward–back or only up–down).

• In 2D motion, the object’s path lies in a flat plane and needs two coordinates (x and y) to describe where it is.

• Mathematically, displacement, velocity, and acceleration all have both x and y components.

A classic example is a ball thrown at an angle: it moves horizontally while simultaneously moving up and then down due to gravity, so its trajectory is a curved path in a plane.

Mini Examples (To Picture It)

• A football kicked at an angle across a field (projectile motion).

• A stone thrown from a cliff into a lake below.
• A car going around a circular track (uniform circular motion), where direction keeps changing in the same plane.

In all these cases, you can’t fully describe the motion with just one number (like only x or only y) — you need both, which is what makes it two- dimensional motion.

In short: two-dimensional motion = motion in a flat plane that needs two coordinates (x and y) to describe it.

TL;DR:
Two-dimensional motion is motion in a plane where an object moves along two perpendicular directions at the same time, so its position, velocity, and acceleration have both x and y components.

Information gathered from public forums or data available on the internet and portrayed here.