183_notes:power

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183_notes:power [2021/04/15 17:14] – [Climbing stairs] stumptyl183_notes:power [2021/04/15 17:17] (current) – [Power] stumptyl
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 ==== Power ==== ==== Power ====
  
-Power is energy change per unit time. It is often associated with the work done by a force (or the net force). Thus the typical way to represent the average power is,+**Power is energy change per unit time.** It is often associated with the work done by a force (or the net force). Thus the typical way to represent the average power is,
  
 $$P_{avg} = \dfrac{W}{\Delta t} = \dfrac{\vec{F}\cdot\Delta \vec{r}}{\Delta t}$$ $$P_{avg} = \dfrac{W}{\Delta t} = \dfrac{\vec{F}\cdot\Delta \vec{r}}{\Delta t}$$
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 The units of power are Joules-per-second (J/s) or Watts (W) named after [[http://en.wikipedia.org/wiki/James_Watt|James Watt]], the developer of the [[http://en.wikipedia.org/wiki/Watt_steam_engine|steam engine]]. Incidentally, Watt's steam engine is a major contributor to the [[http://en.wikipedia.org/wiki/Industrial_Revolution|Industrial Revolution]]. The units of power are Joules-per-second (J/s) or Watts (W) named after [[http://en.wikipedia.org/wiki/James_Watt|James Watt]], the developer of the [[http://en.wikipedia.org/wiki/Watt_steam_engine|steam engine]]. Incidentally, Watt's steam engine is a major contributor to the [[http://en.wikipedia.org/wiki/Industrial_Revolution|Industrial Revolution]].
 +\\
 === Instantaneous Power === === Instantaneous Power ===
  
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