Question

find the gravitational potential at distance r from the center of the earth ?​

Answer 1

Answer:

Gravitational potential energy, U= GMm/ r. For calculating the weight and distance 2r from centre on Earth, we need to get m*g, but here acceleration due to gravity, g is not equal to 9.8 m/s-². Thus weight of the body at a distance 2r from the body = mg = GMm / 4r² = 4r.

Explanation:

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