Retardation or negative acceleration or deceleration.
When an object slows down it is still accelerating.
whe the object slows down
Deaccelration.
sliding friction slows down a sliding object
acceleration, I think
When an object slows down it is still accelerating.
When a car slows down
whe the object slows down
When an object slows down, its acceleration is negative (in a linear sense), or in a direction opposed to its motion (in a vector sense).
Acceleration
Retardation or negative acceleration or deceleration.
If your speed slows down, yYou will have negative acceleration or deceleration.
It slows the acceleration - possibly down to zero @ "terminal velocity".
Deaccelration.
Yes. Acceleration is any change in velocity. When a car slows down it is decelerating; think of deceleration as acceleration in the negative direction.
sliding friction slows down a sliding object
yes, but its value is negative ( as in -x m/s¨2). However it is most often noted as deceleration.