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# Underline the Correct Alternative: the Rate of Change of Total Momentum of a Many-particle System is Proportional to the External Force/Sum of the Internal Forces on the System. - NEET (UG) - Physics

ConceptConcept of Collisions

#### Question

Underline the correct alternative:

The rate of change of total momentum of a many-particle system is proportional to the external force/sum of the internal forces on the system.

#### Solution 1

External force

Internal forces, irrespective of their direction, cannot produce any change in the total momentum of a body. Hence, the total momentum of a many- particle system is proportional to the external forces acting on the system.

#### Solution 2

Internal forces can not change the total or net momentum of a system. Hence the rate of change of total momentum of many particle system is proportional to the external force on the system.

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#### APPEARS IN

NCERT Solution for Physics Textbook for Class 11 (2018 to Current)
Chapter 6: Work, Energy and Power
Q: 6.3 | Page no. 135
Solution Underline the Correct Alternative: the Rate of Change of Total Momentum of a Many-particle System is Proportional to the External Force/Sum of the Internal Forces on the System. Concept: Concept of Collisions.
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