Hear me out, gravity pulls us towards itself. It is determined by the magnitude of mass of that object. As we go deeper in earth, the amount of mass ‘under’ us decreases and so doesn’t the gravity also decrease? Have been thinking about it since I was 12, I am 15 now 🙂
Edit : It wouldn’t be right to thank just one of you by replying as I have seen some other people do but thanks for all the replies, I really appreciate it.
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It does not increase when you go deeper, in fact it decreases.
Think about it like this. Here on the surface of the planet, there is some gravity. And if you are in the very centre of the Earth, there the mass is distributed evenly around you (let’s assume Earth is perfect that way). This means that the mass above your head is evened out by the mass under your feet, and the mass to the left by the mass to your right etc. This means that the net force is zero.
You’re going from some gravity to no gravity, so it must decrease. It may not decrease all the way (perhaps it remains constant for a while; or maybe it increases a bit), but in the end it must decrease.
Now, the neat part is that it decreases linearly. Sadly, I can’t remember the math involved to show it. The important part is that you’ll also have a bunch of mass above you, pulling you up, and that counteracts a part of the pull downwards from the rest of the planet.
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