Consider the following two statements

A         Linear momentum of a system of particles is zero.

B         Kinetic energy of a system of particles is zero.

Then

Option 1)

A does not imply B and B does not imply A

Option 2)

A  implies B but B does not imply A

Option 3)

A does not imply B but B  implies A

Option 4)

A implies imply B and  B  implies A

Answers (2)

As we learnt in

Kinetic energy -

k= \frac{p^{2}}{2m}

- wherein

p\rightarrow momentum

m\rightarrow mass

kinetic Energy is frame dependent

 

 

Linear momentum is a vector quantity linear momentum of a system of particle is zero does not means that momentum of each particle is zero.

i.e. each particle has momentum but their vector sum is zero.

Kinetic energy is scaler quantity hence its summation is n ot zero even if linear momentum is zero.

If kinetic energy of system of particle is zero means kinetic enery of each particle is zero.

In this case total linear momentum is zero.

This means B implies A but A doesnot implies B.

Therefore correct answer is 3.


Option 1)

A does not imply B and B does not imply A

Option 2)

A  implies B but B does not imply A

Option 3)

A does not imply B but B  implies A

Option 4)

A implies imply B and  B  implies A

N neha

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