# Question #c4f46

##### 1 Answer

Dec 21, 2017

It is either 14 N or 9 N, depending on interpretation. See below.

#### Explanation:

The question can be interpreted 2 ways. I will give answers for both interpretations. I will be using the formula of Newton's Universal Law of Gravitation.

The only parameter that is changing in the elevation of the body is r. When the body weighed 144 N, the value of r was R. So the weight at the new location would be different by the multiplication factor, 1/k, where

- Assuming the body is now 3R from the center of the earth, the value of k is

So the new weight is

- Assuming the body 3R above the surface, it is now 4R from the center of the earth, the value of k is

So the new weight is

I hope this helps,

Steve