Power (Edexcel A-Level Further Mathematics): Flashcards

Rate of doing work or rate of energy transfer

$P = \frac{Fd}{t}$

$P = Fv$

Watt ($W$)

$1 \, \text{W} = 1 \, \text{J/s}$

$1 \, \text{kW} = 1000 \, \text{W}$

At constant speed, tractive force equals resistance force

$F = \frac{P}{v}$

$a = \frac{F_{\text{net}}}{m}$

$F_{\text{net}} = F_{\text{tract}} - F_{\text{res}}$