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4 cards from this section. Quick, good the night before a test.
What condition must be met for an object to be in translational equilibrium?
Consider what it means for forces to cancel each other out.
Define rotational equilibrium.
Think about what keeps objects from rotating.
What condition must be met for an object to be in translational equilibrium?
Think about what happens when forces push on an object.
In rotational equilibrium, what must the sum of moments equal?
Consider what prevents an object from rotating.
A seesaw is perfectly balanced when a 30 kg child sits 2 m from the center on one side. How far must a 45 kg child sit on the other side to maintain equilibrium?
Set up an equation based on the principle of moments.
A beam is supported at one end and has a load of 200 N located 3 m from the pivot. Calculate the moment exerted about the pivot.
Apply the formula for calculating torque.
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