In its simple form, it applies when the object is not accelerating relative to the fluid.
Meanwhile, the object of their curiosity was suddenly accelerating.
An object accelerates in the direction the force is moving it.
If there is no net force, the object will not accelerate.
Note that if the net force is non-zero, the object will accelerate.
This means that, regardless of their mass, all objects accelerate at the same rate.
The object began to move again, and the witnesses followed it in their car for a few minutes before the object accelerated out of view.
Common household items and objects can accelerate a fire.
The object accelerated rapidly upward and dwindled against the late morning sky.
When the pilot was close enough, the object accelerated and disappeared again.