Difference between revisions of "Els transports"
From Potatopedia
(Created page with "== Fòrmules == === Impuls i moment lineal === <math>\Delta\vec{p}=0</math> <math>\vec{I}=\vec{F}·\Delta t=m·\Delta\vec{v}</math> === Treball === <math>W=\vec{F}·\Delta\v...") |
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=== Impuls i moment lineal === | === Impuls i moment lineal === | ||
<math>\Delta\vec{p}=0</math> | <math>\Delta\vec{p}=0</math> | ||
<math>\Delta\vec{p}=m·\Delta \vec{v}</math> | |||
<math>\vec{I}=\vec{F}·\Delta t=m·\Delta\vec{v}</math> | <math>\vec{I}=\vec{F}·\Delta t=m·\Delta\vec{v}</math> | ||
Latest revision as of 21:53, 21 February 2016
Fòrmules
Impuls i moment lineal
[math]\displaystyle{ \Delta\vec{p}=0 }[/math]
[math]\displaystyle{ \Delta\vec{p}=m·\Delta \vec{v} }[/math]
[math]\displaystyle{ \vec{I}=\vec{F}·\Delta t=m·\Delta\vec{v} }[/math]
Treball
[math]\displaystyle{ W=\vec{F}·\Delta\vec{x}=F·\Delta x·cos\theta }[/math]
[math]\displaystyle{ W=\Delta E }[/math]
Energia
[math]\displaystyle{ \Delta E_{M}=0 }[/math]
[math]\displaystyle{ E_M=E_p+E_c }[/math]
[math]\displaystyle{ E_c=\frac{1}{2}mv^2 }[/math]
[math]\displaystyle{ E_{pg}=mg(h-h_0) }[/math]
Potència
[math]\displaystyle{ P=\frac{W}{\Delta t} }[/math]
Unitats
- Treball: [J] (N·m)
- Energia: [J] (N·m)
- Potència: [W] (N·m/s)
