Question

A car starts from Bangalore to Mumbai and returns back to Bangalore again in $20hrs$. 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 : 0km/hr, Average Speed : 0 km/hr
• B. Average Velocity : 0km/hr, Average Speed : 80 km/hr
• C. Average Velocity : 80km/hr, Average Speed : 80 km/hr
• D. Average Velocity : 80km/hr, Average Speed : 0 km/hr

Answer 1

The correct option is B

Average Velocity : 0km/hr, Average Speed : 80 km/hr

Displacement = 0 ( as initial position is same as final position )
So, Average Velocity =0;
Distance = $3800-2200=1600km$
Average Speed = $\frac{1600}{20}$ =80 $km/hr$