Super confused: Two asteroids are 100,000 m apart. One has a mass of 3.5 106 kg. If the force of gravity between them is 1.05 10-4 N, what is the mass of the other asteroid?

A. 4.1 108 kg
B. 4.5 109 kg
C. 4.1 109 kg
D. 4.5 108 kg

Question

Super confused: Two asteroids are 100,000 m apart. One has a mass of 3.5  106 kg. If the force of gravity between them is 1.05  10-4 N, what is the mass of the other asteroid?

 		A.	4.1  108 kg
 		B.	4.5  109 kg
 		C.	4.1  109 kg
 		D.	4.5  108 kg

anonymous · Answer

$$\huge F=G \frac{ m_1m_2 }{ r^2 }$$
Where G=6.674×10−11 N⋅m^2/kg^2

anonymous · Answer

$$\huge m_2=\frac{ Fr^2 }{ Gm_1 }$$

anonymous · Answer

All the values you need on the right hand side are given to you in the problem