Assertion: If no external force acts on a system of particles, then the centre of mass will not ....

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Assertion: If no external force acts on a system of particles, then the centre of mass will not move in any direction.
\( \mathrm{P} \)
Reason: If net external force on a system is zero, then the linear momentum of the syst remains constant.
(1) Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
(2) Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
(3) Assertion is correct but Reason is incorrect
(4) Assertion is incorrect but Reason is correct


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