Question

In the absence of external force the velocity.

(a) Remains constant.

(c) Changes continuously.

(b) Vanishes.

(d) None of these.​

Answer 1

Remains constant

Explanation:

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Answer 2

If the external force on the body is absent.

This implies that the acceleration of the body is zero.

According to newton's second law of motion, a body is under acceleration if it is under the presence of the external force.

F = ma

Given F= 0N

Hence, the acceleration of the object is zero.

So, if the object is moving, it will remain moving at the same velocity, and if it is at rest, it will stay at rest.

Hence, the answer to the question is (a) Remains constant.