Question

A body is running along a circular path of circumfernce 44m and complete half. Trip in 11sec his displacement at the end of this journey

Answer 1

First let's differentiate both of them, distance and the displacement.

Distance is the total path length covered by the particle. It is a scalar quantity. S.I unit will be m. Dimension would be that of length i.e [L].

Displacement is the shortest distance between initial and final position or defined more appropriately it is the change in the position vector. It is a vector quantity. Unit and dimensions would be similar to distance.