View Single Post
whozum
#16
Mar20-05, 11:00 PM
P: 2,218
Quote Quote by SpaceTiger
Impulse is

[tex]Fdt[/tex]

not the time derivative of force. It represents the instantaneous momentum transfer, not energy.


Free fall is not when you hit terminal velocity. You're in free fall from the moment you jump.
I meant free fall in the sense of weightlessness, at terminal velocity his net force will be 0. Kind of like the astronauts in space.