These questions have statement I and statement II. Of the four choices given below, choose the one that best describes the two statements. Statement I: The centre of mass of the system will not alter in any direction if the external force is not exerted on it. Statement II: If net external force is zero then the linear momentum of the system remains constant.

These questions have statement I and statement II. Of the four choices

1.	These questions have statement I and statement II. Of the four choices given below, choose the one that best describes the two statements. Statement I: The centre of mass of the system will not alter in any direction if the external force is not exerted on it. Statement II: If net external force is zero then the linear momentum of the system remains constant.
Answer» Statement I is true, statement II is true, statement II is a CORRECT EXPLANATION for statement I. Statement I is true, statement II true, statement II is not a correct explanation for statement I. Statement I is true, statement II is FALSE. Statement I is false, statement II is true. Answer :D