$A$ 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?
$A$ 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
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- [JEE MAIN 2022]
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Choose the correct option out of the following :
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$(i)$ $3$ second, $(ii)$ $5$ seconds, respectively.
Choose the correct option out of the following :
- [JEE MAIN 2022]
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