Solving for gravitational pull

Click For Summary

Homework Help Overview

The discussion revolves around determining the distance from Uranus at which a space probe must be positioned so that the gravitational pull from the Sun balances that of Uranus. The subject area involves gravitational forces and celestial mechanics.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants explore the gravitational force formula and question the roles of the Sun's and Uranus's masses in the context of the problem. There is an inquiry about the specific distance required for balance and the necessary information to solve for it.

Discussion Status

Some participants have provided guidance on the need for additional information, such as the distance from Uranus to the Sun and the masses of both celestial bodies. The discussion is ongoing, with multiple interpretations of the problem being explored.

Contextual Notes

Participants note the requirement for specific distances and mass ratios, indicating that certain information is missing or needs clarification to proceed with the calculations.

jaff
Messages
2
Reaction score
0
How far from Uranus must a space probe be along a line toward the Sun so that the Sun's gravitational pull on the probe balances Uranus's pull?


Fg=Gm1m2/r^2


Would m1 be the sun's mass and m2, Uranus' mass. then what would Fg be?
 
Physics news on Phys.org
jaff said:
How far from Uranus must a space probe be along a line toward the Sun so that the Sun's gravitational pull on the probe balances Uranus's pull?

Fg=Gm1m2/r^2

Would m1 be the sun's mass and m2, Uranus' mass. then what would Fg be?
Hello jaff. Welcome to PF !

If m1 is the sun's mass and m2, Uranus' mass,

and also of r is the distance Uranus is from the sun, then Fg=Gm1m2/r^2 is the force the sun exerts on Uranus.
 
thank you,

but its asking for the distance (km)
 
jaff said:
thank you,

but its asking for the distance (km)
Then one piece of information you will need is the distance that Uranus is from the sun.

Other information you will need are the masses of the sun and Uranus, or at least the ratio of their masses.

You will need to express the force that Uranus exerts on the probe.

You will need to express the force that the sun exerts on the probe.

You will need to equate those two forces.
 

Similar threads

  • · Replies 15 ·
Replies
15
Views
2K
  • · Replies 11 ·
Replies
11
Views
2K
Replies
2
Views
2K
Replies
4
Views
985
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 5 ·
Replies
5
Views
5K
Replies
2
Views
3K
  • · Replies 8 ·
Replies
8
Views
5K
Replies
1
Views
2K
Replies
3
Views
1K