1.

Please answer it. Its really important and hard.

Answer»

ANSWER:

the PERSON in train A is

  • at REST with respect to another person in train A.because they both are in same train.
  • at REST with respect to a person in train Because there is no change in speed and direction of trains so acceleration is constant.
  • moving with CERTAIN velocity with respect to BRIDGE over which the train is running.because bridge is at rest but train is moving.

hope it helps...



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