A bus starts from terminal A and covers a distance of 70 km due East in 30 minutes to reach terminal B. It stays there for three hours and then returns to the initial position in the same interval of time. What is the magnitude of the average velocity of the bus?
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Answer:
0 , because the velocity depand upon displacement and the displacement is 0 in this question
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(৭০+৭০)/((৩০+৩০)/৬০)=১৪০km/h
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