Two trains A and B are running in the sa...

Two trains A and B are running in the same direction on the parallel rails such that A is faster than B. Packets of equal weight are transfcrred from A to B. What will happen due to this :

P will be accelerated but Q will be retarded

P will be retarded but Q will be accelerated

There will be no change in velocity of P, but Q will be retarded

There will be no change in velocity of P, but Q will be accelerated

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