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Sir plz make me understand all the concepts being applied here
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Asked by vishakhachandan026 | 30 May, 2019, 10:15: AM
answered-by-expert Expert Answer
When the packet is in train A, the momentum of it is more than the packet in train B. When the packets are exchanged from A to B and vice versa, as the packet in train A have higher momentum, the train B will get accelearted and as the packet in train B has lower momentum, after exchange the train A will be decelerated. 
Thus,
correct option is (A) - Train A will be retarted and B will be accelerated 
Answered by Shiwani Sawant | 30 May, 2019, 12:09: PM
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please answer
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sir, can you please explain this question in detail, im bit new to this concept
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