you have Fdown = -mg - kmv; (k a constant), so I guess k will have units [1/seconds]?
also, you wrote: dv/dt = -g - kv // m's cancel, differentiate wrt v
I can see the m's cancel, but then you have (before differentiating)
a = a + (-g-kv)
but a IS dv/dt, so i don't know how you can get...
Homework Statement
infinitely long conducting cylinder (hollow, so outter radius = b and inner radius = a) which is grounded is in a constant E-field (E=Eo in direction of cylinders' axis) has a dielectric substand "painted" on it, with dielectric constant c and thickness D. Find the electric...