Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: hamza on 23/08/2007 17:16:59

Title: Gravity increase or decrease
Post by: hamza on 23/08/2007 17:16:59

hi.. could anyone please briefly explain me the effects or changes in the force of gravity (increasing and decreasing effects) at i)Equator, ii)at the poles and iii) with the increase in depth .

Title: Gravity increase or decrease
Post by: syhprum on 23/08/2007 19:43:55

The answer to the depth question can be found in the voluminous correspondence on 'The gravity train', as you descend in a shaft the force of gravity depends only on the mass of the body below you i.e assuming no increase in density halfway to the centre of the Earth G would be about 1.1 m/s/s.
This is counter intuitive but everone agrees on it!