Table of Contents
How can you describe if an object is in equilibrium?
If the size and direction of the forces acting on an object are exactly balanced, then there is no net force acting on the object and the object is said to be in equilibrium.
What is four force principle of equilibrium?
Four force principle: States that if four forces are in equilibrium then resultant of any two forces is equal, opposite and collinear with the resultant of other two forces.
How can an object equilibrium?
If an object is at equilibrium, then the forces are balanced. Balanced is the key word that is used to describe equilibrium situations. Thus, the net force is zero and the acceleration is 0 m/s/s. Objects at equilibrium must have an acceleration of 0 m/s/s.
What are the examples of stable equilibrium?
A book lying on a horizontal surface is an example of stable equilibrium. If the book is lifted from one edge and then allowed to fall, it will come back to its original position. Other examples of stable equilibrium are bodies lying on the floor such as chair, table etc.
Which of the following object is said to be in equilibrium?
A body is said to be in equilibrium if the net force acting on the body is zero. By Newton’s second law, the acceleration of such objects will be zero. Zero acceleration implies a constant velocity. Constant velocity also includes zero velocity as a special case.
What are the laws of equilibrium?
First Law: When a body is in equilibrium, the vector sum of the forces acting on it is zero. Second Law: When a body is in equilibrium, the sum of the moments about any point is zero. The sum of the clockwise and the anticlockwise moments, to two significant figures, is zero. This verifies the second law.
Can a moving object be in equilibrium?
An object moving at constant speed in a straight-line path is also in a state of equilibrium. Once in motion, if there is no net force to change the state of motion, it is in equilibrium.
What are the three state of equilibrium?
There are three types of equilibrium: stable, unstable, and neutral.
Which is an example of an object in equilibrium?
The net force that is acting on the object should be zero. Hence, all the forces balance in each of the direction. For example, consider a car that is moving along the highway at a constant speed. It is said to be in the state of equilibrium, as it does not accelerate in any forward or any vertical direction.
What does it mean when force is in equilibrium?
A force is a vector quantity which means that it has both a magnitude (size) and a direction associated with it. If the size and direction of the forces acting on an object are exactly balanced, then there is no net force acting on the object and the object is said to be in equilibrium.
What does it mean when a body is in equilibrium?
This means that both the net force and the net torque that is acting on the object should be zero. This condition is always true for a body which is in the state of equilibrium. It is given by the expression Fnet = ma = 0. For achieving this condition, the forces which are acting along each of the axes of the motion should sum up to zero.
What happens to the torque of an object in equilibrium?
In equilibrium, the net force and torque in any particular direction equal zero. In equilibrium, the net force in all directions is zero. If the net moment of inertia about an axis is zero, the object will have no rotational acceleration about the axis.