Activity 8.3 Class 9 Science Chapter 8 Motion
The activity 8.3 asks us to measure the distance between two opposite corners of a basketball ground by walking through its corner and compare it with the displacement.
The distance measured from walking through the corner is more than the measured displacement.
The magnitude of the displacement is the shortest possible distance between two points. Here it represents the diagonal length of the court. By Pythagoras theorem, it equals to 106.47 feet.
Activity 8.3 teaches us the difference between the distance and the displacement.
Note: Displacement is a vector quantity. It means it also has a direction. If we level the corner of the court as aA, B, C, D, and a person walks from A to C then the direction of displacement is A to B.
***Activity 8.3 Class 9 Science Chapter 8 Motion***
Ref: NCERT Class 9 Science Chapter 8.