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Hint:We are surrounded by gravitational force. It determines how much we weigh and how far a basketball travels before returning to the ground when tossed. The force exerted by the Earth on you is equal to the force exerted by the Earth on you. The gravity force equals your weight when you're at rest on or near the Earth's surface. The acceleration of gravity on a particular planetary body, such as Venus or the Moon, is different than on Earth, because if you stood on a scale, it would show you weighing a different volume than on Earth.
Complete step by step answer:
Any particle in the universe attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their poles, according to Newton's law of universal gravitation. The theory's publication was dubbed the "first great convergence" because it brought together previously established gravity phenomena on Earth with known astronomical activities.We know that \[F = G\dfrac{{{m_1}{m_2}}}{{{r^2}}}\].
(i) The gravitational force $F$ between two objects separated by $r$, according to Newton's law of gravitation, is
\[F \propto \dfrac{1}{{{r^2}}}\]
When $r$ is halved
\[{r^\prime } = \dfrac{r}{2}\]
Force becomes
\[\dfrac{{{F^\prime }}}{F} = \dfrac{{{r^2}}}{{{r^{'2}}}}
\Rightarrow \dfrac{{{F^\prime }}}{F}= \dfrac{{{r^2}}}{{{{(r/2)}^2}}}
\Rightarrow \dfrac{{{F^\prime }}}{F}= 4\]
\[\therefore {F^\prime } = 4F\]
(ii) The gravitational force F between two particles of mass and, according to Newton's law of gravitation, is
\[F \propto {m_1}{m_2}\]
When each mass is quadrupled
\[{m_1}' = 4{m_1}{\rm{ and }}{m_2}' = 4{m_2}\]
Force becomes
\[{F^\prime } \propto m_1^\prime m_2^\prime \]
\[\Rightarrow \dfrac{{{F^\prime }}}{F} = \dfrac{{m_1^\prime {m^\prime }2}}{{{m_1}{m_2}}} \\
\Rightarrow \dfrac{{{F^\prime }}}{F}= \dfrac{{\left( {4{m_1}} \right)\left( {4{m_2}} \right)}}{{{m_1}{m_2}}} \\
\Rightarrow \dfrac{{{F^\prime }}}{F}= 16\]
\[\therefore {F^\prime } = 16F\]
Note:The rule notes that some point mass attracts every other point mass by a force acting along the line intersecting the two points in today's terminology. The force is proportional to the product of the two masses, and it is inversely proportional to the square of their distance.
Complete step by step answer:
Any particle in the universe attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their poles, according to Newton's law of universal gravitation. The theory's publication was dubbed the "first great convergence" because it brought together previously established gravity phenomena on Earth with known astronomical activities.We know that \[F = G\dfrac{{{m_1}{m_2}}}{{{r^2}}}\].
(i) The gravitational force $F$ between two objects separated by $r$, according to Newton's law of gravitation, is
\[F \propto \dfrac{1}{{{r^2}}}\]
When $r$ is halved
\[{r^\prime } = \dfrac{r}{2}\]
Force becomes
\[\dfrac{{{F^\prime }}}{F} = \dfrac{{{r^2}}}{{{r^{'2}}}}
\Rightarrow \dfrac{{{F^\prime }}}{F}= \dfrac{{{r^2}}}{{{{(r/2)}^2}}}
\Rightarrow \dfrac{{{F^\prime }}}{F}= 4\]
\[\therefore {F^\prime } = 4F\]
(ii) The gravitational force F between two particles of mass and, according to Newton's law of gravitation, is
\[F \propto {m_1}{m_2}\]
When each mass is quadrupled
\[{m_1}' = 4{m_1}{\rm{ and }}{m_2}' = 4{m_2}\]
Force becomes
\[{F^\prime } \propto m_1^\prime m_2^\prime \]
\[\Rightarrow \dfrac{{{F^\prime }}}{F} = \dfrac{{m_1^\prime {m^\prime }2}}{{{m_1}{m_2}}} \\
\Rightarrow \dfrac{{{F^\prime }}}{F}= \dfrac{{\left( {4{m_1}} \right)\left( {4{m_2}} \right)}}{{{m_1}{m_2}}} \\
\Rightarrow \dfrac{{{F^\prime }}}{F}= 16\]
\[\therefore {F^\prime } = 16F\]
Note:The rule notes that some point mass attracts every other point mass by a force acting along the line intersecting the two points in today's terminology. The force is proportional to the product of the two masses, and it is inversely proportional to the square of their distance.
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