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# When an object's initial velocity is less than its final velocity what does that indicate?

Updated: 9/16/2023

Wiki User

12y ago

Acceleration

When the velocity of an object increases or decreases, that means it has accelerated. Acceleration is defined as the rate of change of velocity.

If an object's final velocity is greater than its initial velocity, that indicates positive acceleration. If an object's final velocity is less than its initial velocity -- if, say, it slows down and comes to a stop -- then that indicates negative acceleration. Deceleration is another way of saying negative acceleration. But . . .

It is good idea to avoid using the term deceleration, because an object that is experiencing negative acceleration may slow down, come to a stop momentarily, and then reverse direction and speed up -- IN THE OPPOSITE DIRECTION!

You can think of it this way: When an object is slowing down, its acceleration is in the direction opposite to its motion. We think of that as negative acceleration.

Wiki User

12y ago