How can a seesaw be in equilibrium?
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How can a seesaw be in equilibrium?
If the seesaw is to be in equilibrium, the clockwise moments must be equal to the anticlockwise moments. The seesaw is back in ‘equilibrium’ because a second car has been added to the left hand side, as well. If the seesaw is to be in equilibrium then the clockwise moments must be equal to the anticlockwise moments.
Is seesaw An example of equilibrium?
Two children balancing a seesaw satisfy both conditions for equilibrium. The lighter child sits farther from the pivot to create a torque equal in magnitude to that of the heavier child.
What is an example of static equilibrium?
(iv) a ball kept on the ground. Hence, any non-moving stationary object can be considered to be in static equilibrium. Note: In some cases, like when equal and opposite forces are applied on a stationary rod kept on a table, the net force on the rod becomes equal to zero but it gains some torque in the process.
What type of lever is a seesaw?
first-class lever
There are three main classes of levers. If the fulcrum is in the between the output force and input force as in the seesaw, it is a first-class lever. In a second-class lever, the output force is in between the fulcrum and the input force. An example of a second class lever is a wheelbarrow.
What law of motion is a seesaw?
A seesaw has Rotational Inertia. Newton’s first law of rotational motion: A rigid object that is not wobbling and that is free of outside torques rotates at constant angular velocity. A seesaw is attached to a fixed pivot.
What is static equilibrium in physics?
Static equilibrium is a state where bodies are at rest; dynamic equilibrium is a state where bodies are moving at a constant velocity (rectilinear motion). In both cases the sum of the forces acting on them is zero.
Is a seesaw stable or unstable?
“Unbalanced Seesaw” By: Caren Viniegra (IV-St. Francis) Facts: Seesaws work as a simple example of a mechanical system with two equilibrium positions. One side is stable, while the other is unstable.
What is meant by static equilibrium?
Static equilibrium refers to the physical state of a system, in which the components of the system are at rest and the net force acting on the system should be zero.
What objects are static equilibrium?
Objects in static equilibrium are objects that are not accelerating (either linear acceleration or angular acceleration). These objects may be stationary, such as a building or a bridge, or they may have a constant velocity, such as a car or truck moving at a constant speed on a straight patch of road.
What forces act on a seesaw?
A seesaw is a specific type of lever; it consists of a long beam attached to a pivot called the fulcrum. As soon as you put weight on one end by sitting on one side of the beam it drops to the ground. This is because the force of gravity is acting on the weight of your body, pulling it and the beam down.
What is the motion of seesaw?
Oscillatory motion The child on a see-saw goes up and down continuously. It oscillates up-down. Therefore, it is an oscillatory motion.
What is the type of motion of a child on a seesaw?
Oscillatory motion
(iv) The motion of a child on a see-saw – Oscillatory motion.
What is a seesaw and its concept relating to physics?
A seesaw, also known as a teeter-totter, is a long narrow board with a centre pivot point. A seesaw has a pivot point in the middle of the board. When an object is balanced on a pivot point, the turning forces on each side must equal the turning force on the other side. The Seesaw uses the concepts of Force.
What is static equilibrium equation?
The first equilibrium condition for the static equilibrium of a rigid body expresses translational equilibrium: ∑k→Fk=→0. The first equilibrium condition, Equation 12.2. 2, is the equilibrium condition for forces, which we encountered when studying applications of Newton’s laws.
How do you do static equilibrium?
Static Equilibrium
- Identify the object to be analyzed.
- Set up a free-body diagram for the object.
- Set up the equations of equilibrium for the object.
- Simplify and solve the system of equations for equilibrium to obtain unknown quantities.
What is equilibrium in stability?
Definition of stable equilibrium : a state of equilibrium of a body (such as a pendulum hanging directly downward from its point of support) such that when the body is slightly displaced it tends to return to its original position — compare unstable equilibrium.
What is static equilibrium in physical education?
Static equilibrium is the balance of the body during its rest or stationary position.
How do you explain static equilibrium?
