Engineer Physics/Force

Force is a physical quantity interacts with matter to perform a task .

Example

Force is used to push or pull to open a door .

Symbol and Unit of measurement

Force is denoted as F and measured in Newton uit denoted as N

$1N=1Kg/m^{2}$

Elements of a force

${\vec {F}}_{\theta }=F\angle \theta ={\vec {F}}_{x}+{\vec {F}}_{y}=F_{x}{\vec {i}}+F_{y}{\vec {j}}$

Where

$F={\sqrt {F_{x}^{2}+F_{y}^{2}}}$

$\theta =Tan^{-1}{\frac {F_{y}}{F_{x}}}$

$F_{x}={\sqrt {F^{2}-F_{y}^{2}}}=Fcos\theta$

$F_{y}={\sqrt {F^{2}-F_{x}^{2}}}=Fsin\theta$

Fundamental force

• Impulse
• Gravity force
• Opposite force
• Pressure
• Friction force
• Elastic force
• Centripetal
• Centrifugal
• Electrostatic force
• Electromotive force
• Electromagnetomotive force
• Electromagnetic force
• Strong nuclear force
• Weak nuclear force