A car travels from Bangalore to Mumbai and returns in 20hours. What is the average velocity and average speed of the car if odometer reading of the car, when it started was 2200km and when finished was 3800km?
A
Average velocity = 0 kmph Average speed = 0 kmph
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Average velocity = 0 kmph Average speed = 80 kmph
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
Average velocity = 80 kmph Average speed = 80 kmph
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Average velocity = 80 kmph Average speed = 0 kmph
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is BAverage velocity = 0 kmph Average speed = 80 kmph Given, the displacement of the car = 0km (As the initial position is the same as the final position)
Initial odometer reading = 2200km, Final odometer reading = 3800km. ∴ the distance covered = 3800−2200=1600km Time taken = 20hours
We know: Average velocity=Total displacementTotal time=0 Average speed=Total distanceTotal time =160020=80kmph
∴ the average velocity of the car is 0kmph, and the average speed of the car is 80kmph