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Two trains A and B are runing in the sam...

Two trains A and B are runing in the same directions on parallel tracks such that A is faster than B, packets of equal weight are exchanged between them. Then

A

A will be retarded and B will be accelerated

B

B will be retarded and A will be accelerated

C

There will no change in A but B will be retarded

D

There will no change in B but A will be retarded

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The correct Answer is:
A
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