A train travels with a speed of 60km/h from station A to station B and then comes back from B to A with a speed of 80km/h find average speed. and average velocity

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Solution

let distance between A and B be x

time from A to B =x/60 hours

time from B to A =x/80 hours

total time=x/60 + x/80=7x / 240 hours

av.speed =total distance/total time

x+x divided by 7x/240 =480/7km/h

displacement =0

average velocity = total displacement/ total time = 0/time = 0km/h

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A train travels with a speed of 60km/h from station A to station B and then comes back from B to A with a speed of 80km/h find average speed. and average velocity

let distance between A and B be x time from A to B =x/60 hours time from B to A =x/80 hours total time=x/60 + x/80=7x / 240 hours av.speed =total distance/total time x+x divided by 7x/240 =480/7km/h displacement =0 average velocity = total displacement/ total time = 0/time = 0km/h

let distance between A and B be x

time from A to B =x/60 hours

time from B to A =x/80 hours

total time=x/60 + x/80=7x / 240 hours

av.speed =total distance/total time

x+x divided by 7x/240 =480/7km/h

displacement =0

average velocity = total displacement/ total time = 0/time = 0km/h