confusion ??

Question

Hello friends ?try to solve my confusion..

we know that weight of a body= force..
In space, we feel weight lessness so whyn't in the space the gravitational force acting on us = zero ? whosoever tell this., he/she would be awarded 10points.......

Answer 1

hey its verry common confusion
first weight = mass *g(accel due to gravity
as u go up in the sky due to rotation around earth to stay in orbit centrifugalforce act on you whic is and has to be equal to ur weight otherwise u might be pulled towards earth or leave ur orbit
so thats why u feel weightlessness
u can find more in ne basic gravitational based book

Answer 2

Weight of a body is defined with respect to the gravitation force of a system. We feel weightlessness in space because we are away from the required gravitational field. Force is mass*accelaration. For instance, In earth the gravitation acted is 'g'. The weight of the body is depended on the mass of ones own. Mass remains the constant but eight depends on the systems gravitation.

Answer 3

In earth orbit, you are subject to the earth's gravitational force, but because you are in free fall, you don't feel it. You are moving around the earth, which because of the curvature of the surface is falling away from you as fast as you are falling toward it, so the orbital motion continues indefinitely. The part of a spacecraft that is closer to the earth has a slightly higher gravitational force than that part on the other side, so there is a small difference that can be measured with instruments; this is the same force that causes the tides in the ocean.

Answer 4

When you jump off a wall, while you are falling, what do you feel?

Other than the wind rushing past, you feel no force on your body. Why? The reason is that what you actually feel is not a force, but resistance to a force. When you say you feel weight, what you feel is your muscles holding your arms up against gravity or you chair pushing up to support you against gravity. When you are falling you are not resisting the force of gravity, so you feel nothing.

Now when you are in orbit around the Earth your velocity is constantly changing, because the direction you are moving is constantly changing. In orbit, this change exactly matches the change you would get falling under gravity. So you feel no net force. Everything around you is effectively falling with you.

Answer 5

we feel weightlessness in space because comparing to our earth the value of gravitational force is smaller and the gravitational force is directly proportional to the masses of the celestial bodies .the value of gravity cannot become zero anywhere in the universe .the value may differ from place to place .but it will not attain zero.

Answer 6

we feel weightlessness because in the space the force exerted by the gravity of earth becomes zero as gravity becomes zero. However, other forces exist but since we are concerned only with the earth's gravity, we feel weightlessness.

Answer 7

Because other forces are always acting upon us.So if one can eliminate these forces then the gravitational force can be zero.Every thing can be done with good planning.

Answer 8

Well, when we enter the space, the value of acceleration due to gravity is not completely 0 but its very minute. And your mass remains constant everywhere, whether its on earth or in space.

Answer 9

The force of gravitation (g) is definitely zero in the outer space.you are unnecessarily getting yourself confused.I think that's the clarification of your confusion.

Answer 10

'g' is not zero .it is just that g decreases with height n in space this value is too small. thus it seems no force is acting upon us n we feel weightlessness