Newtons 3 Laws

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BIOMECHANICS

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Measurement and Density

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LAWS OF MOTION

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Newtons 3 Laws

Third Law "Action Reaction Law"

Weight is not the same as mass.

There must be at least two different FBD's

Forces can not be in the same FBD

Every action has a equal and opposite reaction.

Second Law

When there is a net force the object will accelerate in the direction of the net force.

Fnet=ma

Fet=#

First Law "Law of Inertia"

Inertia: Objects resistance to changing it's current state of motion.

More Mass = More Inertia

Fnet=0

Object will remain in its current motion when net force is 0.