Question

Two trains are moving in opposite direction
Train A moves east with a speed of 10m/s
and train B moves west with a speed of 20m/s
What is the i) relative velocity of B w.r.t.A
and ii) the relative velocity a ground w.rt.B
iii) A dog is running on the proof of train A
Against its motion with a velocity of 5m/s
wir.t train A. What is the velocity of
the
dog as observed by a man standing on
the ground? ​

Answer 1

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