What is non uniform motion?

Non-uniform motion is the motion of an object in which it covers unequal distances in equal intervals of time or changes its speed while moving.

For example, a car moving through city traffic speeds up, slows down, and stops frequently. Since its speed is not constant, it is said to be in non-uniform motion.

In simple terms, whenever an object's speed or direction changes, its motion is generally considered non-uniform.