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A system of N particles is free from any...

A system of N particles is free from any external forces
Which of the following must be true for the sum of the magnitudes of the momenta of the individual particles in the system ?

A

It must be zero

B

It could be non-zero, but it must be constant

C

It could be non-zero, and it might not be constant

D

It could be zero, even if the magnitude of the total momentum is not zero.

Text Solution

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The correct Answer is:
C
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