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Answer» Answer :
Inertia =>
We have seen that as per Newton's first law of motion, each object resists a change in its STATE of rest or uniform LINEAR motion. In a qualitative way, the tendency of undisturbed Objects to STAY at rest or to keep moving with the same velocity is CALLED Inertia. Due to this very reason, The first law of motion is also known as law of intertia.
Thus, inertia of an object is its inherent PROPERTY by virtue of which it cannot change by itself its state of rest or of uniform motion along a straight line.
THERE ARE 3 TYPES OF INERTIA :
1. INERTIA OF REST :
The inherent property of an object to oppose any change in its state of rest by itself, is called the INERTIA OF REST.
2. INERTIA OF MOTION :
The tendency of an object to oppose any change in its state of uniform motion, by itself, is called the INERTIA OF MOTION.
3. INERTIA OF DIRECTION :
The tendency of an object to oppose any change in its direction of motion is called the INERTIA OF DIRECTION.
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