Question

1. State the universal law of
gravitation
2. 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

Explanation:

Mass of the earth is 6 x 1024 kg and radius of the earth is 6.4 x 106 m]. Ans. The magnitude of the gravitational force between earth and an object is given by the formula.

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