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mr.physics
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I recently read an article about Joseph Kittinger which stated that in a skydive, he was subjected to a G force of 22 m/s^2. Disregarding fluid resistance, don't objects in free fall always experience one g?
mr.physics said:I recently read an article about Joseph Kittinger which stated that in a skydive, he was subjected to a G force of 22 m/s^2. Disregarding fluid resistance, don't objects in free fall always experience one g?
http://en.wikipedia.org/wiki/Free_fall#Record_free_fallCan you link to or reference the article?
At sea level on Earth do objects not fall at approximately one g?No, objects in freefall experience practically zero g.
Why?Zero G in free fall.
No. What blkqi means is that if you measure acceleration using an accelerometer then you find that free-falling objects have 0 acceleration and an object at rest on the ground has an acceleration of g upwards. This is the acceleration that an object "feels".simpleton said:And I think blkqi meant -1G experienced on when we are on the ground, so we have a net acceleration of 0.
mr.physics said:http://en.wikipedia.org/wiki/Free_fall#Record_free_fall
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At sea level on Earth do objects not fall at approximately one g?
Objects in free fall experience one g because of the force of gravity. Gravity is a fundamental force of nature that pulls objects towards each other. On Earth, gravity causes objects to accelerate towards the ground at a rate of 9.8 meters per second squared, which is equivalent to one g.
Yes, objects in free fall can experience more or less than one g depending on the strength of the gravitational force acting on them. For example, on the moon where the gravitational pull is weaker, objects will experience less than one g in free fall. In contrast, on a planet with a stronger gravitational pull, objects will experience more than one g in free fall.
Yes, the acceleration of objects in free fall is always constant (9.8 meters per second squared on Earth) as long as there are no other forces acting on the object, such as air resistance. This means that the velocity of the object is increasing at a constant rate as it falls towards the ground.
No, objects in free fall do not experience one g in all locations on Earth due to variations in the strength of gravity at different locations. Factors such as altitude, latitude, and local topography can affect the strength of gravity and therefore the acceleration experienced by objects in free fall.
Air resistance can affect the acceleration of objects in free fall by slowing down their descent. As objects fall through the air, they experience a force opposite to their direction of motion due to air resistance. This force increases with the speed of the falling object, eventually reaching a point where it is equal to the force of gravity, resulting in a constant velocity or terminal velocity. This means that the object will no longer accelerate and will fall at a constant speed until it reaches the ground.