Static Equilibrium - Tension, Torque, Lever, Beam, & Ladder Problem - Physics

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This physics video tutorial explains the concept of static equilibrium - translational & rotational equilibrium where everything is at rest and there's no motion. This video contains plenty of examples and practice problems.

Static Equilibrium:


Elasticity and Hooke's Law:


Tensile Stress:


Elastic Modulus:


Bulk Modulus:


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Volume Unit Conversion:


Specific Gravity & Density of Mixtures:


Will It Sink or Float?


Intro to Pressure & Fluids:


Atmospheric Pressure Problems:


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The Gallon Crusher:


Absolute Pressure Vs Gauge Pressure:


Water Pressure Vs Gauge Pressure:


Full-Length Videos and Worksheets:


Physics PDF Worksheets:






Here is a list of topics:
1. Static Equilibrium Problems
2. Balancing a Seesaw - Lever Problem - Using Forces and Torques
3. Torque equals force times lever arm / moment arm
4. Positive and Negative Torques - Clockwise vs Counterclockwise rotation
5. Hanging Sign Tension Problem - Finding the tension in the two cables at two different angles
6. Hanging sign attached to a beam problem - how to calculate the horizontal and vertical components of the force exerted by the hinge and pivot point
7. Hanging sign attached to a beam at an angle - determining the tension force in the cable
8. Ladder Problem - How to find the force exerted by the wall on the ladder and the horizontal and vertical components of the force exerted by the ground / floor on the ladder.
9. Ladder problem with man on top. How to determine the coefficient of static friction that prevents the ladder from sliding down - Normal force and static frictional force calculations.