Question

A particle returns to its starting point after one hour what is its displacement and average velocity?​

Answer 1

Answer:

The average velocity and displacement are 0.

Explanation:

The particle returning to the starting point will not possess velocity as well as displacement due to –

Given is the displacement and average velocity to be calculated when a particle returns to its original position.  

The displacement is a vector quantity so it has magnitude as well as the direction. When a particle starts from a starting point may travel up to a certain distance with a positive displacement but when it return to the starting point, covers the same path with negative displacement, thereby,  

Total displacement = positive displacement + negative displacement = 0.

Similarly, velocity is also a vector quantity which is a measure of displacement over time

Answer 2

Answer:both are zero

Explanation:since the body returns to the initial point displacement is zero and hence avg velocity is also zero