A train takes 2 h to reach station B from station A ,and then 3h to return from station B to station A .the distance between the two stations is 200 km.find:1. the average speed ,2. the average velocity of the train .
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average speed = total distance/total time
av speed of train= 400/5=80 km/h
Av velocity = displace/time = 0/3= 0
(Displacement is the shortest distance from the initial point to the final point. Here since the train returns to the initial point, displacement is zero)
av speed of train= 400/5=80 km/h
Av velocity = displace/time = 0/3= 0
(Displacement is the shortest distance from the initial point to the final point. Here since the train returns to the initial point, displacement is zero)
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