Distance:
* Distance is the total path length traveled.
* In half a revolution, the body covers half the circumference of the circle.
* Circumference of a circle = 2πR
* Distance traveled in half a revolution = (1/2) * 2πR = πR
Displacement:
* Displacement is the straight-line distance between the starting point and the ending point.
* When a body completes half a revolution, it ends up on the opposite side of the circle from where it started.
* Therefore, the displacement is equal to the diameter of the circle.
* Displacement = 2R
Key Points:
* Distance considers the entire path traveled, while displacement focuses on the net change in position.
* In circular motion, distance can be greater than displacement, as seen in this example.
