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

Answer:

(1) Any particle of matter in the universe attracts any other with a force varying directly as the product of the masses and inversely as the square of the distance between them.

(2) Gravitational Force = F = GMm/ R 2

Explanation:

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Answer 2

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