When do we say that a body is retarding or deaccelerating?
When the velocity of a body is decreasing over time, then a body is said to be retarding or deaccelerating.
For example, the motion of the car after applying breaks.
When do you say that a body is in uniform acceleration?
When do you say that body has non-uniform acceleration?
When do we say that a body is at rest when do we say that it is moving?