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equilibrium

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Subject: 
Physics
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Tags: 
Physics
Introductory physics
Force
Physical quantities
Mechanics
Statics
Torque
Tension
Reaction
Net force
Normal force
Free body diagram

EQUILIBRIUM Lecture Notes www.highschoolphysics.net 1 EQUILIBRIUM 1. Force (F) Force is simply a pull or push on an object. Unit of force is Newton (N). [Weight of 1 kg object is approximately 10N] Force is a vector quantity. Ther are two types of forces. a) To apply a force on an object, another object must touch it. [You can not pull or push something without touching it.] Such forces are called ?contact forces.? Ex: Contact force 1: Tension Force (tension) ?on the box?, ?by the rope?. Not by the boy ? rope is touching the box, boy is not touching the box. [You can not pull or push something without touching it.] [Rules about tension: Tension is always along the rope, a rope can not push, only pull.] Ex: Contact force 2: Friction (Ff)

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