Newton's Law of Universal Gravitation: FG= Fg=Gm/r2

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SUMMARY

Newton's Law of Universal Gravitation is defined by the equation FG = G(m1m2/r²), where FG represents the gravitational force between two masses (m1 and m2) separated by a distance (r). The term Fg, or gravitational field strength, is expressed as fg = Gm/r², indicating the force experienced by a unit mass in a gravitational field. FG and Fg are used interchangeably in discussions about gravitational interactions, as they both describe aspects of gravitational force but in different contexts. Understanding this distinction is crucial for mastering gravitational concepts in physics.

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  • Understanding of Newton's laws of motion
  • Familiarity with gravitational concepts and terminology
  • Basic knowledge of algebra and mathematical manipulation
  • Concept of mass and distance in physics
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  • Study the derivation of Newton's Law of Universal Gravitation
  • Explore gravitational field strength calculations using fg = Gm/r²
  • Investigate the implications of gravitational force in real-world scenarios
  • Learn about the differences between gravitational force and gravitational field strength
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Students of physics, educators explaining gravitational concepts, and anyone seeking to deepen their understanding of gravitational interactions and Newton's laws.

isyang94
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Hello, i am so confused
Newton's universal gravitation states FG= Gm1m2/r squared and in this case FG stands for the force of gravitational attraction between any 2 objects, but why is Fg (gravitational field strength) equaled to fg=Gm/r squared? why are FG and Fg used interchangeably? i do not understand the whole concept
thanks
 
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