| For 3c, I had V = 60000 + integral(0,25) (2000 - R(t)) dt.
I've been having trouble with the points allocation for this question, but I'm guessing that there are three points: one for the limits, one for the integrand, and one for the rest of the equation. I have no idea if that's accurate at all, because the limits point seems to double reward you for finding 25 from part (b), but I'm not sure where else to put the 9th point. Maybe it's 2 points for dV/dt in part (a); I only have it as one currently. |