CBSE Class 9 Science Question 15 of 30

Motion — Question 2

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Question 2

Under what condition(s) is the magnitude of average velocity of an object equal to its average speed?

Answer

As average speed is the total distance travelled in a time frame and average velocity is the total displacement in a time frame, so the magnitude of average velocity and average speed will be the equal when the total distance travelled is equal to the displacement.

This happens when an object moves along a straight line in the same direction (without turning back).