Kindly see the attachment.
The Attempt at a Solution
As with all such questions, its in setting everything up that I'm having some trouble.
I know that F = mdv/dt + vdm/dt. And also that F = R - m(t)g, but R = M0g. From here though I don't know how to proceed to obtain the differential equation to solve for v. Any hints?
Thank you very much.