Question

What is retardation and instantaneous acceleration of a body?

Answer 1

Explanation:

Instantaneous Accleration:

The acceleration of an object at a given instant of time or at a given point of its motion is called its instantaneous acceleration.

Retardation :

If the velocity of an object decrease with time its acceleration is negative then it is called retardation or negative acceleration.

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Answer 2

Explanation:

The acceleration of an object at a given instant of time is known as instantaneous acceleration .

When the velocity of an object decrease with time then it is said to be a negative acceleration or retardation.

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