Is it true that acceleration that is directed towards a “negative” direction is called retardation?

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True

False

answer is A.

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Detailed Solution

The above statement is true.
Acceleration is defined as the rate of change of velocity and is given by the formula,

Acceleration = \frac{Final velocity - Initial velocity}{time taken}

The object is said to speed up if the initial velocity is less than the final velocity. Thus the acceleration is said to be positive. Still, suppose the initial velocity is greater than the final velocity. In that case, the object is said to be in slows down, and the acceleration is said to be in the negative direction. When a body's motion is slowed down, we say the motion of the body is retarded. Thus acceleration in the negative direction is also known as retardation.

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