Newtons Three Laws of Motion

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BASICS BIOMECHANICS

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Geo

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Anatomical Terminology

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Newtons Three Laws of Motion

Newtons 3rd Law of Motion

Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first object.

A fireman turns on the hose and is knocked backward.

When you sit in a chair you exert a force on the chair, and the chair exerts an equal and opposite force.

Newtons 2nd Law of Motion

The acceleration of an object depends on the mass and force applied.

A ice skater pushes against the ice it accelerates faster in a certain direction.

Two different mass balls at the same speed with the same amount of motion move at a different speed, or rate

Newtons 1st Law of Motion

An object at rest remains at rest, and an object in motion remains in motion unless acted on by an unbalanced force.

Golf ball on a tee.

Pencil at rest on a table.