Question

A train travels with a speed of 60 km h-1 from station A to station B and then comes back with speed 80km h-1 from station B to station A. Find 1-average speed and 2-the average velocity of train.

Answer 1

Answer:

avg speed is 68.5 and avg velocityis zero

Explanation:

travels from ato b and back to a ..so displacement is zero....and for same distance use ...

2 v1 v2/ v1 + v2

Answer 2

Answer:

2 v1 v2 /v1/v2

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