Final answer:
The value of acceleration due to gravity at the centre of the Earth is zero.
Step-by-step explanation:
The value of acceleration due to gravity at the centre of the Earth is zero. This is because the gravitational force experienced by an object is dependent on the mass of the object attracting it and the distance between the objects. At the centre of the Earth, the gravitational forces from all directions cancel each other out due to the symmetric distribution of mass, resulting in a net gravitational force of zero.
However, it is important to note that as you move away from the centre of the Earth towards the surface, the gravitational force increases. This is because the distance between the object and the Earth's mass decreases, resulting in a stronger gravitational force.
It is also worth mentioning that the acceleration due to gravity is approximately 9.8 m/s² on the Earth's surface, as this is the average rate at which objects accelerate towards the Earth due to gravity.
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