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SI unit of force


a push or pull; needed to change an object's state of motion

Net Force

the combination or sum of forces that act on an object


force that stretches something like a rope or string


an arrow that represents magnitude and direction


quantity described by magnitude but not direction (time, area, volume)

Static Equilibrium

state where an object is at rest

Dynamic Equilibrium

state where an object is moving in a straight line at a constant speed

Mechanical Equilibrium

state where the net force is zero

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