Can Uniform Linear Motion Be Accelerated?

The simple answer is no, uniform linear motion cannot be accelerated.
By definition, uniform linear motion means an object is moving along a straight line at a constant speed. If the speed is constant and the direction doesn’t change, then the acceleration is zero.

Let’s understand this more clearly.

What Is Uniform Linear Motion?

Uniform means constant or unchanging.
Linear motion means movement in a straight line.
So, uniform linear motion refers to motion in a straight line with a constant speed.

In this kind of motion:

The object covers equal distances in equal intervals of time.
The velocity stays the same.
There is no change in speed or direction.

What Is Acceleration?

Acceleration means any change in velocity over time.

If an object speeds up, slows down, or changes direction, it is said to be accelerating.
Acceleration can be positive (speeding up) or negative (slowing down, often called deceleration).

In uniform linear motion:

The speed stays the same.
The direction doesn’t change.
So, there’s no change in velocity, and therefore, no acceleration.

Why Uniform Linear Motion Cannot Be Accelerated

Acceleration requires a change in velocity.
Uniform linear motion specifically describes motion with no change in velocity.
If there was any acceleration, the motion would no longer be uniform.

For example:

A car moving straight at 60 km/h without changing speed is in uniform linear motion and has zero acceleration.
If the car speeds up or slows down, it experiences acceleration, and its motion becomes non-uniform.

Conclusion

No, uniform linear motion cannot be accelerated, because acceleration means a change in velocity, and uniform linear motion has constant velocity with no change.
In simple terms: