Lets just assume that pressure doesn't act upon you.
2007-05-21 20:04:55 · 7 answers · asked by Chris tf 2 in Science & Mathematics ➔ Physics
I don't agree with the previous answers. Gravity would only be cancelled if there was an 'anti-gravity' force to cancel it out with. The force of gravity is cumulative, i.e. it always adds.
So yes, in the center of a massive sphere like, say, the Earth, there is an equal amount of gravity acting in all directions. However, the total force of gravity we feel at the surface is caused by the mass of the Earth, so whether at the surface or at the center, the total amount of force remains constant.
However, because gravity is acting in all directions at the center of the sphere, the amount acting in any particular direction is only a fraction of the total force. So, you would not get torn apart, rather you'd just 'float', but not because the gravity is zero, but rather because it is acting equally from all directions at once.
2007-05-22 01:22:13 · answer #1 · answered by Timbo 3 · 0⤊ 0⤋
if the force of gravity were a linear function, you WOULD be attracted to the center of gravity. but it is a square function - it varies with the square of the distance, not just with the distance, and so you would be attracted, as Billruss suggests, to the nearest inside surface of the hollow sphere, Simply put, the farther surfaces would have disproportionately less effect than the nearer surfaces. Edit! Kirchwey is right. Well, clearly I am not at Newton's level! However, my misconstruance aside, there would be NO gravitational effect at all within the hollow sphere.
2016-05-19 08:16:31 · answer #2 · answered by ? 2 · 0⤊ 0⤋
No. Interestingly, the gravitational field inside a hollow sphere is ZERO! The gravity acting from all sides cancels out!
Perhaps easier to imagine is the electrical field inside a charged sphere. I can see how this cancels out. Well, the same equations have the same solutions:
F=qQ/r^2 ; F=mM/r^2
2007-05-21 20:12:15 · answer #3 · answered by Charley M 3 · 0⤊ 0⤋
The force of gravity at any point inside a hollow ball is zero, so you wouldn't feel anything.
2007-05-21 20:10:47 · answer #4 · answered by Brent L 5 · 0⤊ 0⤋
no. the gravity will be zeo at the centre of the massive sphere!!!
2007-05-21 21:05:52 · answer #5 · answered by kvskmech 2 · 0⤊ 0⤋
no, the force of gravity gets nullified
2007-05-21 20:16:24 · answer #6 · answered by yoshita_nandamuri 2 · 0⤊ 0⤋
I stand corrected, I looked it up and Brent L is right.
2007-05-21 20:12:09 · answer #7 · answered by Matt 2 · 0⤊ 0⤋