The gravity of earth depends on the from its . as this , the magnitude of the gravity

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.

massxgravity x heght=weightxheight= pe

4900=490xh

h=10