Couple of questions, what did I do wrong to calculate time to fall as negative and how do I find how long it takes to reach certain velocity?

Maple Worksheet - Error

Failed to load the worksheet /maplenet/convert/my_skydive_problem.mw .

Download my_skydive_problem.mw

Is the shortest distance to the centroid or the intersection?

Division by zero, overflow error

A recent question brought to me some old applications in the application center, loading those applications in newer Maple versions shows critical information missing.

This prompted me to install MapleV on my computer to properly view these applications however after installing, sadly we get a division by zero, overflow error message. 

Since probably no has done this in this day and age, this is a real stab in the...

Someone asked how to create this in Maple. 

I was able to try the code on M15 and M16 but the final answers are slightly different.  Why is that?  Shouldn't they all come up with the same value?

The value for M15 came up with the same as value as M12 but M16 was different.

Using p(.22,80*3600)

M12  [x = .22, t = 288000., T = 685.116351910514254]

M15  [x = .22, t = 288000., T = 685.116351910514254]

M16  [x = .22, t = 288000., T = 685.11635191051