Question

A train takes 2 hr to travel from station A to station B and on its return journey , it takes 3 hr to cover the same distance . If the distance between the two stations is 200 km , calculate the average speed of the train for the whole journey .

Answer 1

Answer:

ANSWER

Total distance D=200+200=400 km

Average speed ∣V

avg

∣=

Total time

Total distance

∴ ∣V

avg

∣=

2+3

400

=80 km/h

Displacement S=0

Average velocity V

avg

=

Total time

Total displacement

∴ V

avg

=

2+3

0

=0 km/h

Explanation:

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