How to find the force exerted on a particle on the Earth by the Sun

  • Thread starter Vitani11
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Homework Statement


Find the force exerted on a particle on the earth by the sun.

Homework Equations


F = - GMm/r2

r = distance between sun and particle
M = mass of sun
G = Gravitational constant
m = ?

The Attempt at a Solution


Should I be using the other mass as that of the earth, or that of a pebble? I think it is the pebble. I mean it's the force BY the sun ON the pebble, but I want to make sure.
 

Answers and Replies

  • #2
Yes, in this case you should use the mass of the pebble
 
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