Question

Average speed of a moving object is equal to the magnitude of its average velocity when it travels

Answer 1

Answer:

A in a straight line in same direction

Answer 2

Answer:

Average speed of a moving object is equal to the magnitude of its average velocity only in one condition hen an object is moving in a straight line without turning back.

Explanation:

1. The average speed is the total distance travelled by the object in a particular time interval. It is a scalar quantity. It is represented by the magnitude and does not have direction.
2. The change in position or displacement (∆x) divided by the time intervals (∆t) in which the displacement occurs is defined as the average velocity. It can be positive or negative depending upon the sign of the displacement. The SI unit of average velocity is meters per second. It is a vector quantity.
3. Average speed is the total distance travelled by an object to the total time taken. However, average velocity is the change in position or displacement (∆x) divided by the time intervals (∆t) in which the displacement occurs.

Hence when an object travels in straight line the average speed is equal to the magnitude of its average velocity.

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