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tibessiba
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Gravitational Force---Need Help Fast!
You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 1.8*10^7 m and its rotation period to be 22.3 hours. You have previously determined that the planet orbits from its star with a period of 402 Earth days. Once on the surface you find that the acceleration due to gravity is 12.2 m/s^2.
What is the mass of the planet? in kg
What is the mass of the star? in kg
Equations:
Mass(of planet)= g*R^2/G
Ok, so I calculated the mass of the planet to be 1.48*10^25 kg using the above equation. M=[(12.2m/s^2)*(9*10^6m)^2]/6.67*10^-11 Nm^2/kg^2.
Now I am stuck with how to find the mass of the star and which equation to use to get it..
Thank you
Homework Statement
You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 1.8*10^7 m and its rotation period to be 22.3 hours. You have previously determined that the planet orbits from its star with a period of 402 Earth days. Once on the surface you find that the acceleration due to gravity is 12.2 m/s^2.
What is the mass of the planet? in kg
What is the mass of the star? in kg
Equations:
Mass(of planet)= g*R^2/G
The Attempt at a Solution
Ok, so I calculated the mass of the planet to be 1.48*10^25 kg using the above equation. M=[(12.2m/s^2)*(9*10^6m)^2]/6.67*10^-11 Nm^2/kg^2.
Now I am stuck with how to find the mass of the star and which equation to use to get it..
Thank you