The formula of power

The formula of power


P = w / T (average power)
P = Fv (average power or instantaneous power)



On the formula P = FV
On the unit and conversion of the letters in this formula


p: Power, in watts
f: Force, in cattle
v: Speed, in meters per second



In physical P = FV, is f traction or resultant force?


First of all, you should make sure that the relationship between P and F is corresponding, and then consider this formula. When f refers to the traction force, then the corresponding P is the traction power. When f refers to the resultant force, then the corresponding P is the combined force power. Generally speaking, for cars, f in this formula refers to the traction force, and P refers to the traction power, that is, the engine power