Question

When the magnitude of average velocity is the same as that of average speed?

Answer 1

1. The average velocity is defined as the ratio of total displacement to total time and the average speed is the ratio of the total distance to total time.
2. When the body is moving in a straight line with uniform velocity, the displacement and distance are the same.
3. Thus, the average velocity becomes equal to the average speed.

Hence, when the body is moving with uniform velocity or in a straight path, the magnitude of average velocity is the same as that of average speed.