Physics of a Freely Falling Body | Mechanics

 Physics of a Freely Falling Body.


What is the physics behind the so-called "free-falling" body? The word “free” in “free fall” means that the only force acting on the falling object is gravity. There are no other forces to affect it. As a result, when an object falls freely, it falls at a constant rate of acceleration known as gravitational acceleration.

This article provides an overview of how free-falling bodies behave in two different situations: when they are not accelerating or when they are accelerating uniformly under gravity.

 
Physics of a Freely Falling Body.
Physics of a Freely Falling Body.


What is the physics behind a free-falling body?


A body is in free-fall when it is accelerating at a constant rate under the force of gravity. This means that there are no other forces acting on the object to change its motion.

The word “free” in “free fall” means that the only force acting on the falling object is gravity. There are no other forces to affect it. As a result, when an object falls freely, it falls at a constant rate of acceleration known as gravitational acceleration.

This article provides an overview of how free-falling bodies behave in two different situations: when they are not accelerating or when they are accelerating uniformly under gravity.

 

When does a falling object accelerate?


The acceleration of a falling body is more complicated than it seems. In reality, a free-falling object doesn't accelerate at a constant rate. We know that the acceleration of a falling object is determined by gravity, but there are other factors that will affect its acceleration as well.

In the first scenario of uniform free-falling under gravity, an object will accelerate uniformly from rest until it reaches terminal velocity. In this situation, an object accelerates at a constant rate because gravity acts uniformly on the falling object and so does air resistance. This means that if you were to plot the vertical position on a graph versus time for this position, you would see a straight line going up with an increasing slope. This slope is known as gravitational acceleration or just "g".

However, in the second scenario of accelerating free-falling under gravity, an object will accelerate at an increasing rate rather than at a constant rate because it's also being pushed down by air resistance which will increase as the velocity increases. In this situation, if you were to plot the vertical position on a graph versus time for this position, you would see two straight lines intersecting each other with different slopes: one curve that goes up with increasing slope (which is

 

How fast do free-falling bodies move in an accelerating situation?


The first situation is when the object is accelerating uniformly under gravity. In this case, the object will fall with a constant acceleration of around 9.8 meters per second squared (or 32 feet per second squared).

This means that, as time increases, so does the distance an object falls. For example, an object that takes 2 seconds to fall only travels about 4 meters, while an object that takes 10 seconds to fall would travel about 40 meters.

 

The equation for acceleration of free-falling bodies


The equation for the acceleration of a free-falling body is:

`a = -g`

where `g` is gravitational acceleration. This says that the acceleration of any object falling freely is always negative, which indicates that it is always accelerating. Objects are constantly accelerating because gravity increases their velocity at a constant rate, causing them to gain speed as they fall.

 

Conclusion


Now that you know the physics behind free-falling bodies, you are able to better understand the motion of any object. This guide should help you to better understand the motion of an object.

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