What is defined as the length of the path over which an object travels?

What is defined as the length of the path over which an object travels?

• A. Displacement
• B. Distance
• C. Trajectory
• D. Route

Answer: (B)

The concept of distance refers to the total length of the path an object takes during its travel, irrespective of the direction of movement. It is a scalar quantity that quantifies how much ground an object has covered during its motion, without taking into account where it started or ended.

In contrast, displacement represents the shortest straight-line distance from the starting point to the endpoint, along with the direction. While trajectory refers to the path that an object follows through space as a function of time, it does not specifically measure length in the same way distance does. The term route typically implies a specific course or a path chosen for travel and can relate to travel logistics rather than the physical measurement of length.

Thus, the best definition for the length of the path over which an object travels is distance.