Guidelines

Is centrifugal force the opposite of gravity?

Is centrifugal force the opposite of gravity?

7.2. Centrifugal force is the apparent outward force on a mass when it is rotated. Since Earth rotates around a fixed axis, the direction of centrifugal force is always outward away from the axis. Thus it is opposite to the direction of gravity at the equator; at Earth’s poles it is zero.

What happens to gravity if the earth stops spinning?

This rotational velocity causes the Earth to bulge out around its equator, turning our planet into an oblate spheroid (a flattened ball). Without this spin, gravity would be able to pull the Earth into a nice perfect sphere.

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Why dont we feel the centrifugal force of the earth spinning?

Because the rotation of the earth is very smooth and doesn’t change, the centripetal acceleration we feel is very nearly constant. This means that the (small) centrifugal force from the rotation gets added to gravity to make up the “background force” we don’t notice.

What force acts in the opposite direction of gravity?

A buoyant force acts in the opposite direction of gravity.

Does centrifugal force affect gravity?

The centrifugal force is proportional to the tangential speed of the rotating reference frame. Since centrifugal force points outwards from the center of rotation, it tends to cancel out a little bit of earth’s gravity. If the earth were not spinning, you would be heavier as you would feel the full force of gravity.

Why is centrifugal force not a real force?

The centrifugal force is very real if you are in a rotating reference frame. However, the centrifugal force is an inertial force, meaning that it is caused by the motion of the frame of reference itself and not by any external force.

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Would gravity be stronger if the Earth wasn’t spinning?

If the earth were not spinning, you would be heavier as you would feel the full force of gravity. Since there is more centrifugal force at the equator to cancel gravity, your overall weight at the equator versus at the poles is even less. The centrifugal force at the poles is zero.

What would happen if the Earth spun the other way?

The reverse in the spin of the Earth would indicate a reverse in the directions of trade winds such that the ones normally blowing from the northeast will now come from the northwest. With reversed directions, westbound flights would suddenly be much shorter than eastbound flights.

What is the opposite of Earth gravity?

The opposite of gravity is antigravity. Unfortunately (perhaps fortunately) there is no such force.

What direction is the force of gravity on Earth?

centre
As a satellite moves around the Earth in a circular orbit, the direction of the force of gravity is always towards the centre of the Earth.