- #1
- 65
- 0
Main Question or Discussion Point
Hey, instantaneous power is computed by F dot v, but this equation should only be valid if F is constant correct?
Nope. Why do you say that? F and v can be vector functions of time and space and whatever else.Hey, instantaneous power is computed by F dot v, but this equation should only be valid if F is constant correct?
The equation should end up as: P(t) = F(t) dot V(t). Note that work is defined as the line intergral of F(s) dot ds.The above only simplifies to P = F dot v in the case that dF/dt = 0, or in other words, if F is constant.