Static Equilibrium

Key Questions

• What are the conditions for a system to be in static equilibrium?

  Fairly simple! Don't overcomplicate it.

  #SigmaF = 0#

  #Sigmatau = 0#

  Why? The object isn't moving! So no net forces or torque must be acting on it.

  Al E. · 1 · Apr 28 2018
• What is net force in static equilibrium?

  In a static equilibrium, all the forces balance each other and object is either not moving or moving with uniform velocity and hence net force is zero .

  Shwetank Mauria · 1 · Jul 29 2018
• What are some examples of static equilibrium?

  Answer:

  Static equilibrium means that all the forces acting on a body are equal #and# operating in a direction exactly opposite to another.

  Explanation:

  My favorite example of static equilibrium is in this video on YOUTUBE:

  The equilibrium exists with or without the chairs, but it would be more static without the giggling.

  EET-AP · 4 · Mar 11 2017

• How is static equilibrium formed?
• Does the sum of the external torques on the rigid object have to equal zero in static equilibrium?
• Are forces on a rigid object summing to zero in static equilibrium?
• What is tension force in static equilibrium?
• What is net force in static equilibrium?
• How does friction force act in static equilibrium?
• What are some examples of static equilibrium?
• Why does the location of the center of gravity depend on how an object’s mass is distributed?
• An arbitrarily shaped piece of plywood can be suspended from a string attached to the ceiling. How could you use a plumb bob to find its center of mass?
• When is the net torque acting on an object zero, and yet the net force is nonzero?
• What are the conditions for a system to be in static equilibrium?
• How does static equilibrium work in the body?
• Can an object be in equilibrium if it is in motion?
• Question #85d38
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• What is an example of an object that has balanced forces acting on it?
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• How would you calculate the magnetic field in the following places: 33cm to the north of the wire? 230mm to the south of the wire? 880μm below the wire? 0.18m above the wire?
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• What is the equilibrium rule?
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• A rigid body in the shape of a 'V' has two equal arms made of uniform rods. What must be the angle between the two rods so that when the body is suspended from one end, the other end is horizontal?
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• A uniform rectangular trapdoor of mass #m=4.0kg# is hinged at one end. It is held open, making an angle #theta=60^@# to the horizontal, with a force magnitude #F# at the open end acting perpendicular to the trapdoor. Find the force on the trapdoor?