Asked by ww
The mass of Mars is 6.42 × 1023 kg. Its moon Phobos is 9378 kilometers away from Mars and has a mass of 1.06 × 1016 kg.
What is the gravitational force between Mars and Phobos?
5.16 × 1015 N
5.16 × 1021 N
4.84 × 1022 N
4.84 × 1025 N
All Answers 1
Answered by
GPT-5 mini
AI
Use Newton's law: F = G M m / r^2.
G = 6.67×10^−11 N·m^2/kg^2
M = 6.42×10^23 kg
m = 1.06×10^16 kg
r = 9378 km = 9.378×10^6 m
F = (6.67×10^−11)(6.42×10^23)(1.06×10^16) / (9.378×10^6)^2
≈ 5.16×10^15 N
Answer: 5.16 × 10^15 N (the first choice).
G = 6.67×10^−11 N·m^2/kg^2
M = 6.42×10^23 kg
m = 1.06×10^16 kg
r = 9378 km = 9.378×10^6 m
F = (6.67×10^−11)(6.42×10^23)(1.06×10^16) / (9.378×10^6)^2
≈ 5.16×10^15 N
Answer: 5.16 × 10^15 N (the first choice).
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.