- #26
rollingstein
Gold Member
- 646
- 16
I don't agree.Actually i got the total speed dependent only on the x axis so saying that v.total is dx/dt is correct because it's no longer the slope of the parabola but the slope of f(x).
The only way v = dx/dt is if [itex]\vec{v}[/itex] was directed along the x axis.
i.e. v_y was zero.
But here the velocity does have a y component so I don't see how you are allowed to do what you did.
OTOH, your elegant solution form tempts me but still.....
PS. Maybe I am wrong. I'm no expert.