Question

Unit of gravitational force, pressure , state the relation between 'g' and 'G'
Write the formula to find the magnitude of the gravitational force between the earth and an object on the surface of the earth

Answer 1

Answer:

Unit and measurement

One g is the force per unit mass due to gravity at the Earth's surface and is the standard gravity (symbol: gn), defined as 9.80665 metres per second squared, or equivalently 9.80665 newtons of force per kilogram of mass. ... Specific force is another name that has been used for g-force.

Answer 2

Consider F is the force of attraction between an object on the surface of earth and earth.

Also consider ‘m’ is the mass of the object on the surface of earth and ‘Me’ is the mass of earth.

Therefore the formula for magnitude of the gravitational force between the earth and an object on the surface is given as

G = GM1m2 / r²