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Forces (Contact forces (Friction, Tension, Normal Reaction), Non-contact…
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Friction
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Negative Effects
Moving parts in engines,motors and machines suffer,wear and tear
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Newton's First Law
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Definition
States that every object will continue in its state of rest or uniform motion in a straight line unless a resultant force acts on it
Newton's second Law
Definition
When a RF acts on an object of a constant mass, the object will accelerate in the direction of the RF.
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Newton's Third Law
Definition
If body A exerts a force on body B,then body will exert an equal and opposite force on body A
