A car coasting with rolling drag and air drag

[seanwfd]

Homework Statement

Drag=m(Mu*g+(V^2)/L)
L=constant with unit of length
initialV=V_0
how far the car will coast under this condition with initial V
how long does it take to stop

Homework Equations

a=V*dv/dt

The Attempt at a Solution

there are linear and non-linear parts in this drag
I tried to solve them separately but I can only find v'=e^-(V_0*x*L)

 

[tiny-tim]

welcome to pf!

hi seanwfd! welcome to pf!

(have a a mu: µ and try using the X² and X₂ icons just above the Reply box )

that doesn't look right … what happened to the µ ?

show us your full calculations, and then we'll see what went wrong, and we'll know how to help!