Question

Derive equation for depth and Explain why value of g is O at the centre of the Earth
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Answer 1

Explanation:

We know that F=G.m.m2/r^2 also F=m.g

so by putting mg=G.m.m2/r^2 also putting the respective values of "G"(gravitational constant

"m2"(mass of earth) ,"r"(radius of earth)

BUT AT THE CENTRE OF THE EARTH THE GRAVITATIONAL ACCELERATION g CANCELS OUT FROM TOP AND BELOW SO YOU FEEL 0 ACC. AT THE CORE OF THE EARTH.