Newton's Law of Gravitation: Practice Problem & Solution
Earth exerts a gravitational force on the Moon, keeping it in its orbit. The reaction to this force, in the sense of Newton’s third law, is:
Solution Explained:
To solve this problem, we apply the core principles of Newton's Law of Gravitation. Understanding the underlying formula is key to arriving at the correct answer below:
According to Newton’s third law, for every action, there is an equal and opposite reaction.
The Earth exerts a gravitational force on the Moon, and the Moon exerts an equal and opposite gravitational force on the Earth. This reaction force is the gravitational force on Earth by the Moon.
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