What does the principle of conservation of linear momentum state?

The linear momentum of a system cannot be changed.

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The linear momentum of a system cannot remain constant.

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The linear momentum of a system can be changed only if internal forces act.

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The linear momentum of a system can be changed only if external forces acts on it.

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Solution

The correct option is D The linear momentum of a system can be changed only if external forces acts on it.
The principle of conservation of linear momentum states that the linear momentum of a system can be changed only if external forces acts on it.

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Similar questions

If Linear momentum is defined as 'mass x speed', can we state a principle of conservation of linear momentum as 'linear momentum of a system remains constant if no external force acts on it?

The linear momentum of a system of particles is the sum of linear momenta of the individual particles . Can we state a principle of conservation of linear momentum as "linear momentum of a system remains constant if no external force acts on it"???

Q. Assertion :To conserve linear momentum of a system, no force should act on the system. Reason: If net force on a system is zero, its linear momentum should remain constant.

Q. Assertion :Internal forces cannot change linear momentum. Reason: Internal forces can change the kinetic energy of a system.

Q. A block moving in air, explodes into two parts. Then just after explosion (neglect change in momentum due to gravity)

Statement

1

:- The total momentum of the two parts must be equal to the momentum of the block before explosion.

Statement

2

:- If no external force acts on a system, then the linear momentum of the system will be conserved.

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What does the principle of conservation of linear momentum state?

The correct option is D The linear momentum of a system can be changed only if external forces acts on it.The principle of conservation of linear momentum states that the linear momentum of a system can be changed only if external forces acts on it.

The correct option is D The linear momentum of a system can be changed only if external forces acts on it.
The principle of conservation of linear momentum states that the linear momentum of a system can be changed only if external forces acts on it.