# Which of the following is a correct explanation of the INERTIA of a body?

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## Which of the following is a correct explanation of the INERTIA of a body?

A. Reluctance to start moving when at rest and its reluctance to stop moving once it has begun to move

B. Reluctance to stop moving

D. Reluctance to start moving and its readiness to stop moving once it has begun to move

A

## DETAILS…

Inertia is simply the tendency of a body to continue in its state of rest or uniform linear velocity until an external force act on it. In other words, inertia is the reluctance of a body at rest to move, or the reluctance of a uniformly moving body to come to rest.

### Now for the right answer to the above question:

1. Option A is correct.
2. Option B is incorrect. not only the reluctance to stop moving but also the reluctance to start moving.
3. C is incorrect. reluctance and not readiness.
4. D is not the correct answer. Reluctance to stop moving once in uniform motion and not readiness.