A difference between final and original position in a straight line

For straight line motion, positions can be shown using a number line. The separation between original and final position is called displacement.

EXPLANATION:For straight line motion, positions can be shown using a number line. The separation between original and final position is called displacement.

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.