Chapter 10 – Gravitation

If the earth suddenly shrinks (without changing mass) to half of its present radius, then acceleration due to gravity will be If the earth suddenly shrinks (without changing mass) to half of its present radius then acceleration due to gravity will be September 18, 2020 Category: Arihant Physics by D.C Pandey , Chapter 10 - [...]

Gravitational force between a point mass m and M separated by a distance is F. Now, if a point mass 2m is placed next to m in contact with it, The force on M due to m and the total force on M are Gravitational force between a point mass m and M separated by [...]

The rotation of the Earth having radius R about its axis speeds up to a value such that a man at latitude angle 60 degree feels weightlessness. The duration of the day in such a case is. The rotation of the Earth having radius R about its axis speeds up to a value such that [...]

The angular speed of earth in rad/s, so that the object on equator may appear weightless is ( radius of earth =6400 km) so that the object on equator may appear weightless is ( radius of earth =6400 km) The angular speed of earth in rad/s September 18, 2020 Category: Arihant Physics by D.C Pandey [...]

A body has a weight 72 N. When it is taken to a height h=R= radius of earth, it would weight A body has a weight 72 N. When it is taken to a height h=R= radius of earth it would weight September 18, 2020 Category: Arihant Physics by D.C Pandey , Chapter 10 - [...]

Two point masses each equal to 1 kg attract one another with a force of 10^−9 kg-wt. the distance between the two point masses is approximately (G=6.6×10^−11MKS units) Two point masses each equal to 1 kg attract one another with a force of 10^−9 kg-wt. the distance between the two point masses is approximately (G=6.6×10^−11MKS [...]

If a planet consists of a satellite whose mass and radius were both half that of the earth, then acceleration due to gravity at its surface would be If a planet consists of a satellite whose mass and radius were both half that of the earth then acceleration due to gravity at its surface would [...]

The depth ′d ′at which the value of acceleration due to gravity becomes n/1 times the value at the earth’s surface is (R= radius of the earth) The depth ′d ′at which the value of acceleration due to gravity becomes n/1 times the value at the earth's surface is (R= radius of the earth) September [...]

If radius of the earth is R then the height h at which the value of g becomes one – fourth is If radius of the earth is R then the height h at which the value of g becomes one - fourth is September 18, 2020 Category: Arihant Physics by D.C Pandey , Chapter [...]

The mass of a planet is twice the mass of earth and diameter of the planet is thrice the diameter of the earth, then the acceleration due to gravity on the planet’s surface The mass of a planet is twice the mass of earth and diameter of the planet is thrice the diameter of the [...]