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According to Newtons first law of motion...

According to Newton`s first law of motion , which of the following statement (s) is/are correct ?

A

If the vector sum of forces acting on a body is zero, then and only then the body remains unaccelerated

B

An inertial frame of reference is one in which Newton`s first law is obeyed

C

Newton`s first law is the law of inertia

D

All of these

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The correct Answer is:
D
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