Concept explainers
The force of gravity between two planets depends on their
(a) masses and distance apart.
(b) planetary atmospheres.
(c) rotational motions.
(d)All of these.
The correct option for the statement "The force of gravity between two planets depends on their".
Answer to Problem 1RAT
The correct option for the statement "The force of gravity between two planets depends on their" is option (a).
Explanation of Solution
According to the law of gravitation, the force of attraction between two masses is proportional to the product of the interacting masses. The force also has an inverse-square relation with the distance separating the masses.
Write the equation for the force of gravity.
Here,
F is the force of gravity
G is the gravitational constant
m1 and m2 are the masses
d is the distance of separation between the masses
So, the force of gravity between two planets is dependent only on the masses and the distance separating them. The force of gravity does not depend on the planetary atmospheres. The force of gravity has no relation with the rotational motion of the interacting masses.
Conclusion:
Therefore, the correct option for the statement "The force of gravity between two planets depends on their" is option (a).
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