Question

Another name of negative retardation

Answer 1

answer is acceleration

Answer 2

The correct answer to the question is acceleration i.e the negative retardation is acceleration.

EXPLANATION:

The acceleration of a body is defined as the rate of change of velocity.

The acceleration is a positive quantity. It is produced when the velocity of  a body increases with time . It may be also produced due to the change in direction of motion of the body .

The retardation is the negative acceleration. The acceleration is said to be retardation if the velocity of the body gradually decreases with the course of time.

Here, we have been given negative retardation. The negative retardation  will result a positive quantity. Hence, the positive quantity is nothing else than acceleration.