Description : What will be the time period of a simple pendulum at the centre of Earth?
Last Answer : Gravitational acceleration increases ,as distance from the centre decreases g=GM/s2 where, G=gravitational constant(6.67by 10^-11) M=mass of any pulling body(earth) s=distance from centre Though not ... effective down position, so if you created a void to swing the pendulum it would not swing.