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Assuming that the question is "Can a body in free fall be in equilibrium?" A system (or body) is said to be in equilibrium if there is no net force and no net torque (turning effect produced by the forces). a net force means that no resulting force is acting on the object. The force of the body (according to Newton's second law of motion F=MA) is the product of the mass of the object and its acceleration. In this case, the object's acceleration would be the acceleration of free fall. Applying this in the context of this question: As soon as the fluid resistance (air resistance) is equal and opposite to the weight of the body (it's force according to the product of its mass and acceleration); the object has no resultant force. However, the body is still travelling towards the centre of the gravitational field (If it was a planet, it would be the centre of the planet) and as you travel towards the centre of the gravitational field, the acceleration due to free-fall increases according to the law of gravitation attraction. This would resultant in more force (and thus weight) and air resistance would have to be equal and opposite to result in no net force acting on the body. According to the law of gravitational attraction, the force (weight of an object) is governed by the product of the gravitational constant and the mass of the 2 objects involved and all this divided by the square of the distance between them. Applying this to the question, the body's force increases the closer it gets to the object it is going towards. So it may not be easily possible to achieve a zero net force in which the object does not accelerate. However, the other criteria for equilibrium is that there is no net torque (no resultant turning effect of the forces on the body). So long as the object does not rotate or turn then there is no resultant torque. In conclusion, a body in free fall can only be in free fall if it has no resultant force. No resultant force can only be achieved inside a fluid (something that flows like a gas or liquid) to stop the object from accelerating. If it is inside a fluid, fluid resistance will eventually equal the weight of the object and will result in no resultant force acting. However, in space (assuming that the gravitational attraction of the body that you are going towards is still acting), the body will not encounter fluid resistance so it will continue to speed up according to the acceleration of free-fall and it will have a resultant force. The other criteria for equilibrium is no resultant torque; so long as the object does not rotate, it has no resultant torque. So if the object is in space and still under the influence of the gravitational field the body is accelerating towards, it is not in equilibrium as it has a resultant force. But if it is inside a fluid and is encountering an equal but opposite force and results in a zero net force and zero net torque...it is in a state of equilibrium
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoyes. it will reach its maximum speed, which is known as it's 'terminal velocity'. at this point, it is no longer accelerating in a given direction, which is the definition of equilibrium. No,a body in free fall not always in equilibrium.A body said to be in equilibrium when it is in rest or moving with constant speed.In free fall body is accelerating with 9.8 m/s^2. so, it is not in equilibrium.
But,If the air resistance is equal to the gravitational force,then it moves with constant speed.Then only it said to be in equilibrium.
thank you for your time!
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What is Free Fall Balance?
a body is falling with no gravitational force is known as free fall balance
How does the equilibrium relate to the body systems?
equilibrium relates to the body systems becuase, the body has to maintain homeostasis. Which means that equilibrium has reached in your body.
What is the difference between rest and equilibrium?
Velocity of body and acceleration of body is zero implies body is at rest Acceleration of body is zero implies it is in a state of equilibrium Body in equilibrium can have non zero velocity
When a body is said to be in equilibrium?
A body is said to be in equilibrium if it is at rest relative to the inertial reference frame or if the forces acting on a body are equal and opposite A body is said to be in equilibrium if its acceleration is 0 and net force is also 0
Which body is in equilibrium?
When the net force acting on the body is zero. The body will remain in equilibrium until an external force is applied to the body.
Explain the Principle of Equilibrium and Free Body Diagram?
System is in the equilibrium if all the forces (external and reactional - internal) are in the equilibrium - resulting force is zero vector. Free body diagram is drawn for each body of the mechanical system. The body is disconnected from the system and contacts (sometimes called joints) are replaced by reactional forces. Then for each body equations of equilibrium can be written based on the principle of equilibrium.
How does the equilibrium affect the body?
It keeps you balanced so you don't fall down or feel dizzy and sick.
What the concept of free fall?
Free fall means that the body is falling but wihout the effect of gravity. at free fall g=0 and when g=0 then it means body is falling with constant velocity.
What is Free Fall Balance?
a body is falling with no gravitational force is known as free fall balance
How is free fall related to acceleration?
during free fall of body the gravity of earth tries to attract the body as it applied equally to whole body ... so body do not experience any gravitational force and there is nothing present in the atmosphere to oppose the fall which results it have maximum acceleration during free fall....
How does the equilibrium relate to the body systems?
equilibrium relates to the body systems becuase, the body has to maintain homeostasis. Which means that equilibrium has reached in your body.
Why a body cannot be in equilibrium due to single acting on it?
A body is in equilibrium when the force on it is zero, thus if a single force is on the body, the force must be zero or the body will not be equilibrium.
Why a body cannot be in equilibrium to single force acting on it?
A body is in equilibrium when the force on it is zero, thus if a single force is on the body, the force must be zero or the body will not be equilibrium.
What is the motion of a body when only the force of garvity is acting on the body?
Free Fall
What is the difference between rest and equilibrium?
Velocity of body and acceleration of body is zero implies body is at rest Acceleration of body is zero implies it is in a state of equilibrium Body in equilibrium can have non zero velocity
An increase in demand will cause the equilibrium price and quantity to rise?
An increase in demand will cause the equilibrium price to fall and equilibrium quantity to rise.
The motion of a body when only force of gravity is acting on the body?
zero velocity =)
