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ineedhelpwithhw
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The acceleration of free fall at the equator is not equal to the acceleration of free fall at the poles.explain?
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i don't know what centrifugal force has to do with gravitationexponent137 said:The main reason is centifugal force of spinning of earth. Besides, Earth is not a perfect spheroid, it is a little flattened because of this centrifugal force.
https://en.wikipedia.org/wiki/Gravity_of_Earth#Latitudefaiziqb12 said:i don't know what centrifugal force has to do with gravitation
centrifugal force just akes varitions in gravitation ... it can't produce it itselfA.T. said:
That's what this thread is about.faiziqb12 said:centrifugal force just akes varitions in gravitation
maybe centrifugal force effects gravitation on land and not in the skyexponent137 said:But it is interesting if some meteoroid falls toward Earth on equator. It falls like toward non-rotation earth, thus it does not feel Earth's centrifugal force.
i said maybeexponent137 said:This is not precisely. If you throw a stone from equator, its acceleration is smaller because of centrifugal force. Because rotation of Earth is in-calculated in it.
Centrifugal force exist only in the rotating reference frame of the Earth, no matter if on land or in the sky. In the inertial frame there is no centrifugal force, no matter if on land or in the sky.faiziqb12 said:maybe centrifugal force effects gravitation on land and not in the sky
faiziqb12 said:and as there is highest centrifugal force at the equator there the gravitational acceleration is decreased more as compared to the poles
This looks a lot like an end of chapter question.ineedhelpwithhw said:The acceleration of free fall at the equator is not equal to the acceleration of free fall at the poles.explain?
the gravitational force isn't affected at the poles by the centrifugal force{which is opposite in direction of gravitational force}...DrStupid said:How do you explain that the gravitational acceleration is increased at the poles (compared to non rotating body) even though there is no centrifugal force?
It's only opposite in direction exactly at the equator, not on the rest of the Earth. At the poles it's zero, so it's not opposite to anything.faiziqb12 said:the gravitational force isn't affected at the poles by the centrifugal force{which is opposite in direction of gravitational force}.
faiziqb12 said:so at the poles the gravitation is somewhat the same as it should be...
faiziqb12 said:i just said somewhat
somewhat always is used in contrast to another thing ..... for example here it was used in reference to gravity at equator...DrStupid said:Then at the equator the gravitation is also "somewhat the same as it should be"
faiziqb12 said:and yes i must commit that the gravity at the poles is actually that very much equal in magnitude to unaffected gravitation that the changes are negligible
A gravitational field is a region in space where a mass experiences a force due to the presence of another mass. This force is known as the gravitational force.
The strength of a gravitational field is measured by the force it exerts on a unit mass, known as the gravitational field strength. It is measured in units of newtons per kilogram (N/kg).
The greater the mass of an object, the stronger its gravitational field. This means that the larger the mass of an object, the greater the force it exerts on other objects in its gravitational field.
Free fall is the motion of an object under the sole influence of gravity, without any other forces acting on it. In a free fall, the object is accelerating towards the ground at a constant rate of 9.8 m/s² due to the Earth's gravitational field.
The height and mass of an object do not affect its free fall. In a vacuum, all objects will accelerate towards the ground at the same rate due to gravity. However, in the presence of air resistance, the mass and shape of an object can impact its free fall as it experiences a drag force that opposes its motion.