answersLogoWhite

0

This is an interesting situation. First of all we have to understand the nature of forces possible acting on the drowning body in a liquid medium.

1) weight of the body Mg acting always downward

2) buoyant force which equals to the weight of the displaced liquid always acting upward opposite to weight of the body.

3) As the weight Mg is more than buoyant the body there is net downward force which makes the body accelerated within the liquid medium hence sets in motion.

4) now due to movement of body in the liquid there comes the viscous drag due to viscous nature of liquid. Viscous drag is always opposite to the direction of motion of body in the liquid.

More beautiful point is that this viscous drag ,according to Stokes's formula, is proportional to the speed of the body. Hence viscous drag gradually increases. At one stage the upward viscous drag becomes exactly equal to the net downward force. So now no force is acting on the already moving body. By Newton's first law of motion, every body continues in its uniform motion unless compelled by any external force. Hence uniform motion there after. So maximum velocity which is named terminal velocity. Very interesting scientific explanation! Isn't it?

User Avatar

Wiki User

13y ago

What else can I help you with?

Continue Learning about Physics

When gravitational forces and air resistance equalize on an object that is falling toward earth and the object stops accelerating its velocity is called?

In that case, the object is said to have achieved terminal speed.


How can you measure when an object has reached terminal velocity?

Terminal velocity is reached when the forces of gravity and air resistance acting on an object are equal, causing the object to no longer accelerate. To measure when an object has reached terminal velocity, you can observe that the object falls at a constant speed without speeding up. This can be done by measuring the object's velocity as it falls and noting when it remains constant.


How can one determine when terminal velocity is reached?

Terminal velocity is reached when the force of air resistance acting on a falling object is equal in magnitude to the force of gravity pulling the object down. This results in a net force of zero, causing the object to fall at a constant speed. Terminal velocity varies depending on the size, shape, and weight of the object.


The largest velocity reached by a falling object is its what?

The largest velocity reached by a falling object is its terminal velocity. Terminal velocity is the constant maximum velocity reached by an object when the drag force is equal in magnitude and opposite in direction to the gravitational force acting on the object.


Sentence for terminal velocity?

Terminal velocity is the constant speed reached by an object falling through the atmosphere when the force of gravity is balanced by air resistance.

Related Questions

The largest velocity reached by falling object is its?

Terminal velocity.


Why is terminal velocity an example of balanced forces?

When terminal velocity is reached, the gravitational force is balanced with the force of resistance.


When gravitational forces and air resistance equalize on an object that is falling toward earth and the object stops accelerating its velocity is called?

In that case, the object is said to have achieved terminal speed.


How can you measure when an object has reached terminal velocity?

Terminal velocity is reached when the forces of gravity and air resistance acting on an object are equal, causing the object to no longer accelerate. To measure when an object has reached terminal velocity, you can observe that the object falls at a constant speed without speeding up. This can be done by measuring the object's velocity as it falls and noting when it remains constant.


What is the acceleration of falling object that has reached its terminal velocity?

Zero, by definition.


How can one determine when terminal velocity is reached?

Terminal velocity is reached when the force of air resistance acting on a falling object is equal in magnitude to the force of gravity pulling the object down. This results in a net force of zero, causing the object to fall at a constant speed. Terminal velocity varies depending on the size, shape, and weight of the object.


The largest velocity reached by a falling object is its what?

The largest velocity reached by a falling object is its terminal velocity. Terminal velocity is the constant maximum velocity reached by an object when the drag force is equal in magnitude and opposite in direction to the gravitational force acting on the object.


Sentence for terminal velocity?

Terminal velocity is the constant speed reached by an object falling through the atmosphere when the force of gravity is balanced by air resistance.


When is air resistance stronger than gravity?

When terminal velocity has been reached.


What is the speed of an object that has reached terminal velocity?

The speed at terminal velocity depends on the mass and shape of the object. For example, a sheet of paper will have a very low terminal velocity; the terminal velocity for a man will be much higher.


A skydiver steps from a helicopter and falls for 5 seconds before reaching her terminal velocity During this 5 second interval her acceleration will?

increase- your speed will increase until terminal velocity is reached. From there it will stay constant.


In free fall when the air resistance is equal to the weight of the falling object we say that the object has reached velocity.?

Yes. When the force of air resistance equals the force of gravity acting on the falling object, the net force on the object becomes zero, causing it to reach terminal velocity. At this point, the object stops accelerating and falls at a constant speed.