Physics
Assertion (A) : Inertia is an inherent property of each body by virtue of which it has a tendency to resist the change in its state of rest only.
Reason (R) : Force is that external cause which tends to change the state of rest or the state of motion of an object.
- both A and R are true and R is the correct explanation of A
- both A and R are true and R is not the correct explanation of A
- assertion is false but reason is true
- assertion is true but reason is false
Motion in One Dimension
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Answer
assertion is false but reason is true
Explanation
Assertion (A) is false because inertia is the tendency of a body to resist any change in its state, whether it is rest or uniform motion in a straight line. So, it does not apply only to rest, but also to motion.
Reason (R) is true because this is the definition of force as per Newton’s first law as a force causes a change in a body’s state of rest or motion.
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