Gravitation

Newton's Law of Gravitation


  • The gravitational force of attraction between two particles is directly proportional to the product of their masses and inversely proportional to the square of the distance \tt F=\frac{G\ m_{1}m_{2}}{r_{2}}
  • The value of "G" is constant for any two bodies in any medium.
  • Modification of space by mass particle is called gravitational field.
  • Law of gravitation is a consequence of action at a distance concept.
  • The relation between g and G which is used to calculate variation of 'g' is g = GM/R2
  • The vector form of Newton's law of Gravitation \tt F=\frac{G\ m_{1}m_{2}}{r^{3}}\ \overrightarrow{r}
  • Newtons law of gravitation is used to calculate the value of 'g'.
  • Weight of a body is defined as the gravitational force with which a body is attracted towards the centre of earth.
  • Universal gravitational constant may be defined as the force of attraction between two bodies of unit mass each are placed unit distance apart.
  • The gravitational force between two masses is independent of intervening medium.
  • Gravitational force obeys Newtons third law of motion.
  • Gravitational force is conservative force.
  • Gravitational forces follow principle of superposition.
  • Gravitational force between bodies is independent of the presence of other bodies.
  • The law of Gravitation strictly holds for point masses.

View the Topic in this video From 0:05 To 6:09

View the Topic in this video From 0:05 To 11:28

Disclaimer: Compete.etutor.co may from time to time provide links to third party Internet sites under their respective fair use policy and it may from time to time provide materials from such third parties on this website. These third party sites and any third party materials are provided for viewers convenience and for non-commercial educational purpose only. Compete does not operate or control in any respect any information, products or services available on these third party sites. Compete.etutor.co makes no representations whatsoever concerning the content of these sites and the fact that compete.etutor.co has provided a link to such sites is NOT an endorsement, authorization, sponsorship, or affiliation by compete.etutor.co with respect to such sites, its services, the products displayed, its owners, or its providers.

Gravitational force, \tt F=\frac{Gm_{1}m_{2}}{r^{2}}