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Qmechanic ♦
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edit approved Mar 16, 2021 at 22:10
AFG
edit approved Mar 16, 2021 at 22:10
AFG
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In the equation for universal gravitation (1)$(1)$ between two objects, where from is $r$ calculated.? From the surface, from the center? Also, are the objects assumed to be particles in this equation or could the be multiple particles like molecules?

(1) $F=G \frac{m_{1} m_{2}}{r^{2}}$$$F=G \frac{m_{1} m_{2}}{r^{2}}\tag{1}$$

In the equation for universal gravitation (1) between two objects, where from is $r$ calculated. From the surface, from the center? Also, are the objects assumed to be particles in this equation or could the be multiple particles like molecules?

(1) $F=G \frac{m_{1} m_{2}}{r^{2}}$

In the equation for universal gravitation $(1)$ between two objects, where from is $r$ calculated? From the surface, from the center? Also, are the objects assumed to be particles in this equation or could the be multiple particles like molecules?

$$F=G \frac{m_{1} m_{2}}{r^{2}}\tag{1}$$

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timtam
timtam
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Where from is the distance calculated in Newton's law of universal gravitation?

In the equation for universal gravitation (1) between two objects, where from is $r$ calculated. From the surface, from the center? Also, are the objects assumed to be particles in this equation or could the be multiple particles like molecules?

(1) $F=G \frac{m_{1} m_{2}}{r^{2}}$