Question

what is inertia.
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Answer 1

Answer:

Inertia, property of a body by virtue of which it opposes any agency that attempts to put it in motion or, if it is moving, to change the magnitude or direction of its velocity. Inertia is a passive property and does not enable a body to do anything except oppose such active agents as forces and torques.

Answer 2

Answer:

Inertia is a property of matter by which it remains at rest or in motion in same straight line unless acted upon br some external force