How does the gravitational force between two objects change with distance?

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Homework Help Overview

The discussion revolves around understanding how gravitational force between two objects varies with distance, specifically in the context of a physics problem involving the formula for gravitational force.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the use of a formula to express gravitational force for different distances and compare results. Questions arise about the variables used in the formula, particularly the meaning of "r" and its relation to "d". There is also uncertainty about the necessity of certain mass values and the gravitational constant.

Discussion Status

The discussion is ongoing, with participants seeking clarification on the variables involved and how to approach the problem. Some guidance has been provided regarding the cancellation of certain terms in the formula, but confusion remains about the application of the given information.

Contextual Notes

Participants express concerns about their understanding of physics concepts, indicating a lack of prior experience in the subject. There is mention of specific values and approximations provided for constants, which may influence their approach to the problem.

elle
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You know what r is in both cases so just use the formula to express F and F' for both cases and compare the two results.
 
I still don't understand...where does R come into the formula?? :rolleyes:
 
r is the distance between the center of the Earth and the object in question. That is the symbol people usually use but I just noticed the picture you showed uses "d" to represent that distance so r is the same as your d.
 
Ok please bear with me if I sound dumb...never taken physics before so I'm finding it realli difficult :cry:
So do I have to find m1 and m2? And for G I've been given an approximation for it, and I don't know if I'm suppose to use it :confused:
 
Assuming that neither the mass of the plane nor of the Earth change then they both cancel out - along with G! They made it really convenient for you. :)
 

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