Calculating Gravitational Force Between Two People

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Homework Help Overview

The discussion revolves around calculating the gravitational force between two individuals, each with a mass of 59 kg, positioned 2 meters apart. Participants are exploring the application of Newton's law of universal gravitation in this context.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the correct formula for gravitational force and question the use of weight in this scenario. There is an exploration of the gravitational constant and its role in the calculation.

Discussion Status

Some participants have provided guidance on the appropriate formula to use, while others have clarified the distinction between gravitational force and weight. The discussion appears to be progressing towards a clearer understanding of the concepts involved.

Contextual Notes

Participants are working under the assumption that they need to apply the gravitational constant and are clarifying the definitions and roles of various variables in the equation.

physicsgurl12
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Homework Statement


what is the gravitational force acting on a person due to another person standing 2 meters away? assume each individual has 59kg mass.


Homework Equations


looks like i tried to use w=mgy
but that was wrong.
with that you get like 1156.4

The Attempt at a Solution


the answer is 5.8*10^-8N but idk how to get it
 
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Look up Newton's law of universal gravity. (W = mg is the weight of a body near the Earth's surface--the gravitational attraction between the Earth and the body. You want the force between the two bodies.)
 
so Fg=G* (m1m2)/r^2 is g 9.8 or fg?
 
physicsgurl12 said:
so Fg=G* (m1m2)/r^2
That's the correct equation. But there's no 'g' in that equation. What you need is the gravitational constant G. (Look it up.)
 
its 6.673*10^-11 thanks i got it now
 

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