Question

The weight of an object at the centre of the earth of radius ‘R’ is

a) zero

b) infinite

c) ‘R’ times the weight at the surface of the earth.

d) 1/R2 times the weight at surface of the earth

Answer 1

Answer:

correct (a)) zero

Explanation:

Acceleration due to gravity is given by, g′=g[1−dR] . At the center of the earth R is equal to d so the acceleration due to gravity is zero. Since weight of the object is the product of mass and acceleration due to gravity, weight is also zero.

Answer 2

Answer:

your Answer is Zero.

hope it will help you!!!