Explain clearly, with examples, the distinction between :(a) magnitude of displacement (sometimes called distance) over an interval of time,and the total length of path covered by a particle over the same interval from Physics Motion in Straight Line Class 11 Manipur Board
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Class 10 Class 12
Explain clearly, with examples, the distinction between :
(a) magnitude of displacement (sometimes called distance) over an interval of time,
and the total length of path covered by a particle over the same interval


The magnitude of displacement over an interval of time is the shortest distance (which is a straight line) between the initial and final positions of the particle.

The actual path length covered by the particle in a given interval of time is the total length of the path covered by the particle. 



Consider, for example, a particle moves from point A to point B and then, comes back to a point, C taking a total time t. 

Displacement of the particle = AC 

Total path length = AB + BC

Magnitude of displacement can never be greater than the total path length. However, in some cases, both quantities are equal to each other.




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