Awomen who normally weighs 400 n stands on top of a ladder so high she is one full additional earth radius above the surface of the earth. how much does she weigh now

The woman weighs 100N now.

Explanation:

Given:

F is given as 400N

one full additional earth radius formed

To Find:

Weight of the woman=?

Solution:

We know that gravitational force is inversely proportional to the square of radius.

where

is the gravitational force

is the radius square

So when radius is doubled, the force becomes one fourth of the original.

Therefore

measuring things 1 litre of water