Question

train travel with a speed of 60 km per hour from station a to station B and then come back with a speed 80 km per hour from station B to station a find the average speed and average velocity of to train travels with a speed of 60 km per hour from station a to station B and then come back with a speed of 40 km per hour from station Bittu station a find the average speed and average velocity of rain ​

Answer 1

Explanation:

Let the distance be x

Then,

T1 is x/60

T2 is x/80

Avg.speed = Total distance / Total time

= x + x / x/60 + x/80

= 2x/ 7x/240

= 480/7 = 68.5 kmph

Avg.velocity = Total displacement / Total time

Since in the question it is given that the train comes back to the initial position, the displacement is 0

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