Atravel a car travels from stop a to stop b with a speed of 30 kilometre per hour and then returns backto a speed of 50 kilometre per hour find displacement of the car, distance travelled by the car, average speed of the car ​

Average speed = 2v1v2 / (v1 + v2)

= 2 * 60 * 80 / (60 + 80)

= 9600 / 140

= 96/14 km/h

60 km

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speed = total distance / total time

speed = 30 + 50 / 1hr +1hr

speed = 80/ 2

thetefore, speed = 40km/h

hope it helps u

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