Question

when is the distance travelled and displacement equal in motion​

Answer 1

Explanation:

When an object moves in a straight line without coming back, it's displacement and distance magnitude will always be equal.

Answer 2

Explanation:

Distance traveled is a scalar magnitude that is measured over the trajectory. Displacement is a vector magnitude that depends only on the initial and final position of the body and which is independent of the trajectory. Imagine a body that moves on a circular path, thus returning to the starting point.