Question

if the weight of an object on the surface of the Earth is 120 Newton then what will be its weight at the centre of the earth

Answer 1

Hey #mate..

Zero . .since acceleration due to gravity is zero at centre and weight of an object depends on it..

Thanks

Answer 2

The weight at the centre of the earth is "zero(0)".

Explanation:

Weight of a body is the force with which it is attracted towards the centre of earth.

The weight of a body( w) of mass (m) is given.

∴ The weight of a body, W = mg

Where, 'g' is the acceleration due to gravity .

At the centre of earth, value of g is zero.

Weight of a body at the centre of the earth, w = mg

At the centre of earth, g = 0

Weight = m × 0  = 0

Hence, the weight at the centre of the earth is zero(0).