Class 9 Physics Motion Motion along a Straight Line

Motion along a Straight Line


  • Distance: Total ground covered by an object during its motion between any two points.


  • Displacement: The shortest distance measured from the initial to the final position of an object.


  • Distance is a scalar quantity (it only has magnitude no direction) whereas Displacement is a vector quantity (it has both magnitude and direction)


When we draw a straight line with the help of a ruler the tip of pencil move in a straight line.

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