The quantity that is proportional to force in Newton’s Universal law of gravitation.
Answer to Problem 1QP
Option (a) proportional to both masses.
Explanation of Solution
Write the formula for Newton’s Universal Law of Gravity
Here,
Therefore, according to Newton’s Universal law of gravitation, force is directly proportional to the masses and inversely proportional to the square of the distance between them.
Conclusion:
Force is proportional to both masses. Thus, option (A) is correct.
Force is not proportional to the radius. Thus, option (B) is incorrect.
Force is not proportional to the radius squared. Thus, option (C) is incorrect.
Force is not inversely proportional to the orbiting mass. Thus, option (D) is incorrect.
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Chapter 4 Solutions
21st Century Astronomy: The Solar System (Sixth Edition)
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