Does gravity at the Centre of the Earth is zero?
If you are at the center of the earth, gravity is zero because all the mass around you is pulling “up” (every direction there is up!). If the earth were about 36,000 km in diameter with the same mass and length-of-day then the gravity at the equator would be zero.
How will you show that the acceleration due to gravity at the Centre of the Earth is zero?
Answer: When we move towards centre of earth, the mass is equally distributed in all directions. Thus, all the gravitational forces applied cancel each other and acceleration due to gravity (g) at centre of earth on centre of earth becomes zero (0).
How do you prove gravity equation?
g = GM/r2, Where M is the mass of the Earth, r the radius of the Earth (or distance between the center of the Earth and you, standing on its surface), and G is the gravitational constant.
How does gravity work at the center of the Earth?
At the center of the Earth, the situation is different. Because Earth is nearly spherical, the gravitational forces from all the surrounding mass counteract one another. In the center, “you have equal pulls from all directions,” says Geza Gyuk, the director of astronomy at the Adler Planetarium in Chicago.
Is there gravity at the center of a planet?
Yes. There’s gravity everywhere – it’s an intrinsic property of all matter that has non-zero mass. If you were at the centre of the Earth it would feel like you were weightless. This is because all of the forces on you that result from the Earth’s gravity are balanced.
What is the gravity at the equator?
Using Newton’s law of gravity, we find that the force of earth’s gravity on your body at the equator is 9.798 m/s2 times the mass of your body, whereas at the poles it is 9.863 m/s2 times the mass of your body. The earth’s centrifugal force also varies with latitude.
How is gravity derived?
Gravity is most accurately described by the general theory of relativity (proposed by Albert Einstein in 1915), which describes gravity not as a force, but as a consequence of masses moving along geodesic lines in a curved spacetime caused by the uneven distribution of mass.