3.2 Equilibrium of forces and 3.3 Static Equilibrium
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Last updated 1:43 PM on 4/21/23
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8 Terms
1
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________: object is displaced, it experiences a net force or torque in same direction as displacing force.
Unstable equilibrium
2
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________: if the object is displaced, it experiences a net force or torque in the opposite direction to the displacing force= restoring force /torque.
Stable equilibrium
3
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________: if the object is displaced, its equilibrium is unaffected.
Neutral equilibrium
4
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translational equilibrium → sum of upwards forces = sum of downwards forces
sum of the forces acting on it is 0 N
5
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rotational equilibrium → sum of clockwise moments = sum of anticlockwise moments
sum of the moments (torques) acting on it is 0 N m
6
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if the object is displaced, it experiences a net force or torque in the opposite direction to the displacing force = restoring force/torque
stable equilibrium
7
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object is displaced, it experiences a net force or torque in same direction as displacing force
unstable equilibrium
8
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if the object is displaced, its equilibrium is unaffected
neutral equilibrium
