Sample Solution from
Essential University Physics: Volume 2 (3rd Edition)
3rd Edition
ISBN: 9780321976420
Chapter 20
Problem 1FTD
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To determine

To explain: The importance of gravitational force.

Answer

Answer: Gravitational force is important because it acts on all the bodies and it binds everything in the whole universe together.

Explanation

Explanation:

Gravitational force is the weakest of all known forces in nature. The gravitational force is responsible for holding all the bodies. The gravitational force follows the inverse square law, just like the electrostatic force, but the difference in magnitude is very significant. The gravitational force between a proton and electron is 1040 times weaker than the electric force between them.

The strength of gravity decreases with distance but if the body is massive, it will have a higher magnitude of gravitational force. Gravity is important as it gives the body its weight. It is extends throughout the whole space and all bodies regardless of its size experience the gravitational force.

Conclusion:

Therefore, gravitational force is important because it acts on all the bodies and it binds everything in the whole universe together.

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