Question

Average velocity and average speed is same for:

• A. A flight travelling between Delhi to Kolkata.
• B. A car making a round trip on a circular track.
• C. A one-way trip on a straight road.
• D. A car going from Delhi to Mumbai on a zig-zag road.

Answer 1

The correct option is C A one-way trip on a straight road.

For average velocity and average speed to be same, distance and displacement of the body should be same for the same time interval.
A car making a round trip on a circular track, its displacement will be $0$ whereas it will have some non-zero distance.
On a straight road, distance and displacement are same as long as the object never returns back and always moves in the same direction.
For a flight travelling between Delhi to Kolkata, its value of distance is more than the displacement because of the elevation it covers.
For the car going on a zig-zag road, the distance is more than the displacement.