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According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction. A. True B. False

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SCIENCE AND MATH TEACHER AN IITian & MORE THAN 10 YEAR OF EXPERIENCE

This is not principle of conservation of energy but it is principle of conservation of momentum.
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"TUTOR with Eight years Experience in teaching profession"

In case of isolated system it's write.
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Physics Teacher

No. It is due to CONSERVATION OF MOMENTUM and not conservation of energy. Extra Info - In higher classes when you will read about four-vectors (hence four-velocity, four-momentum etc) the law of conservation of emeren and law of conservation of momentum will be combined into one as law conservation...
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No.

It is due to CONSERVATION OF MOMENTUM and not conservation of energy. 

 

Extra Info - In higher classes when you will read about four-vectors (hence four-velocity, four-momentum etc) the law of conservation of emeren and law of conservation of momentum will be combined into one as law conservation of four-momentum.

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Physics Teacher

ya, it is true but According to a principle of conservation of momentum
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Maths Tutor

It's true. It is the cause of existence in the universe. Law of momentum.
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Tutor

It is applicable in terms of energy conservation when there is system is surrounded by adiabatic wall or collision will elastic otherwise this condition is universal for linear momentum conservation...
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yes this is true momentum will conserve unless external force does not work.
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SCIENCE AND MATH TEACHER AN IITian & MORE THAN 10 YEAR OF EXPERIENCE

True.
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True
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Advanced Chemistry

True
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