Question

Which characteristic does an object with a constant acceleration always have?

Answer 1

By definition, speed is the integral of acceleration with respect to time.

We have then:

$v = \int\limits^t_0 {a} \, dt$

As the acceleration is constant, then integrating we have:

$v = a*t + vo$

Where,

vo: constant of integration that corresponds to the initial velocity

We observe then that the speed varies linearly when the acceleration is constant .

Therefore, for constant acceleration, the velocity is changing.

Answer:

an object with a constant acceleration always have:

A. changing velocity

Answer 2

The characteristic that an object with constant acceleration will always have is Changing velocity 

Answer. . .
A. Changing Velocity corresponds with acceleration.

Good luck on your studies, hope this helps~ ^//^