Question

A stone weights 100N on the surface of earth.The ratio of its weight at a height of half the radius of earth to its weight at a depth of half the radius of the earth will be?(plz answer with explanation)

Answer 1

When the body moves depth at half radius its weight become (1/4)*100N and when it moves height of  half radius then weight become (4/9)*100;hence the correct answer is 16/9