Question

What is meant by retardation?

Answer 1

1. The change in velocity is known as acceleration.
2. The velocity of the body may either increase or decrease.
3. If the velocity of the body increases, acceleration is said to be positive.
4. Similarly, if the velocity decreases, the acceleration is said to be negative.
5. When the final velocity of the body is less than the initial velocity, then the body is said to be under retardation.
6. For example, A train reaching the station slows down, in this case, we can say that the train is retarding.
7. Retardation is acceleration with a negative sign. Or the negative value of acceleration shows that the velocity of a body is decreasing.
8. Its SI unit is the same as acceleration i.e., $m/s^{2}orm{s}^{-2}.$