Question

What is the weight of a particle at the centre of the earth

Answer 1

Answer:

∞

Explanation:

We know that the weight of an object is the force applied by earth on it.

By the law of gravitation, we know that F = GMm/R²

If the object is in the center of the earth, R will be 0 and R² will also be 0.

Dividing by 0 gives an answer of infinity and hence the weight will be infinity.

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