Find the gravitational force of the sun on Mercury

  • Thread starter chris_0101
  • Start date
  • #1
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Homework Statement


Find the gravitational force of the sun on Mercury
M_sun = 1.98892 x10^30 kg
M_mercury = 3.3022 x10^23 kg
Distance of sun and mercury = R = 6.863 x10^10
G = 6.67 x10^-11


Homework Equations


FG = GMsunMmercury/R^2


The Attempt at a Solution



I simply plugged in the given values (which I found from wolfram alpha) into the formula for F_G and I calculated the answer to be:
9.300 x10^21 N

However, the answer is not correct. If anyone can correct my mistake, that would be greatly appreciated.

Thanks
 

Answers and Replies

  • #2
1,039
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Where did you get the distance from mercury to the sun, and is it a measurement from the center of the sun to the center of mercury? If not, you may have to add in the radii of the two.
 

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