Is it true that speeding up always means positive values of the acceleration and slowing down negative values of the acceleration?

Is it true that speeding up always means positive values of the acceleration and slowing down negative values of the acceleration?

Is it true that speeding up always means positive values of the acceleration and slowing down negative values of the acceleration?

The acceleration of a body is the rate of change of its velocity. If a body is speeding up the velocity of the body is increasing. The change in velocity which is equal to final velocity – initial velocity is a positive quantity. As a result the acceleration of the body is positive. When a body is slowing down the final velocity is less than the initial velocity, this makes the change in velocity negative and as a result the acceleration is also negative.It is true that if a body is speeding up the acceleration is positive and if it is speeding down the acceleration is negative.