How is that gravity suddenly drops to zero when we enter space?

Question

Shouldn’t it decrease gradually as we go up?

In: Physics

Answer 1

> Shouldn’t it decrease gradually as we go up?

It does. Specifically, it follows an inverse square law – if you double your distance from the center of the Earth, the force of gravity is four times weaker. Gravity does not suddenly drop off when you enter space – you have to go a *long* way away from the Earth to be outside of its gravitational influence.