Fluid Dynamics

How does air resistance affect the acceleration of falling objects?


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2012-02-15 19:20:07
2012-02-15 19:20:07

Air resistance causes friction and slows an object.

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Air resistance creates friction and slows a falling object.

As a falling object accelerates through air, its speed increases and air resistance increases. While gravity pulls the object down, we find that air resistance is trying to limit the object's speed. Air resistance reduces the acceleration of a falling object. It would accelerate faster if it was falling in a vacuum.

Air resistance will determine the "terminal volocity" based on surface area

no, acceleration due to gravity is always the same, although air resistance might affect it

The force of acceleration (gravity) the drag (resistance which is a complex factor including shape, density, surface structure, viscosity of the medium through which the object is falling, etc. )

terminal velocity is the final maximum velocity of a falling object.

Yes mass affects the gravitational acceleration between objects. But air resistance doesn't affect the gravitational acceleration, it only affects the net acceleration of the objects concerned. According to Newton's Law of Gravitation the gravitational force between two or more objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

As objects fall, they are accelerated by the force of gravity, which causes them to continually fall faster, until they either reach the ground, or until they reach what is known as terminal velocity, which is the speed at which air resistance is equal to the force of gravity, so that the falling object does not accelerate any more.

It slows the acceleration - possibly down to zero @ "terminal velocity".

No. If there's any difference in the acceleration of different falling objects, it's the result of air resistance. If you could drop them through a space with no air, the lightest feather and the heaviest rock would have the same acceleration. It's called the acceleration of gravity, and it's 9.8 meters (32.1 feet) per second2 on earth. Regardless of the mass of the falling object.

free fall is a special type of motion in which the only force acting upon an object is gravity. Objects that are said to be undergoing free fall, are not encountering a significant force of air resistance; they are falling under the sole influence of gravity. Under such conditions, all objects will fall with the same rate of acceleration, regardless of their mass.

There's no mechanism for swapping drawings on WikiAnswers. Suggest you try internet search for terms like 'free fall', 'gravity', 'air resistance', 'terminal velocity', etc.

In the absence of other factors, such as air resistance, the weight of an object does not affect its rate of acceleration in a gravitational field.

The force of gravity will accelerate the falling objects towards itself.

Nearly all falling object are affected by the resistance of air. However some objects have a mass greater than the air can affect. There is also the case where air resistance equals that of gravity and the object will not fall any faster.

It does not affect its acceleration in a vacuum, that is, no air resistance. The acceleration s the acceleration of gravity which is constant

The object opposes the air and while falling of the object the initial velocity will become zero , and the final velocity will have some value's this is how air will resist the velocity of falling object ...........

I think the other one is mass. The heavier it is, the less the wind can affect it but if it's large in size there is more wind to affect it.

This is false. The answer is that mass and distance affect the gravitational attraction between objects. Air resistance has no effect on this.

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