Help with Error in gravity due to uncertainty in r.

[cam borrett]

Homework Statement

Derive an algebraic expression for the error in gravity due to the uncertainty in r. Use limit error formulas and show all steps. Assume that errors in G and M are negligible.

Homework Equations

g=GM/r^2

The Attempt at a Solution

[/B]
i use the error formula but not sure about what the input for what...

 

[Orodruin]

i use the error formula but not sure about what the input for what...

Show us what you did. It is the absolutely easiest way for us to identify where you are going wrong or where your misconception lies.