Motion in one dimension

  • when or in which condition 'distance and displacement' is the same?

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

    1)why not travelling backwards?

    Displacement is is a vector quantity and distance is a scalar quality.

    So if you walk on a line ABC, and you walk from A to C and then walk backwards to B:

    Your total displacement will be, AC - CB this is because displacement is a vector and it considers direction.


    You total distance travelled will be, AC + CB this is because distance is a scalar and it doesn't consider direction.

    Now it's clear that why the obeject shouldn't come back for them to be equal.

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