A belated reply … yes, I made a computational error in my previous reply. So FTR, the correct numerical answer is indeed 3.82526 knots. The OP’s setup was correct. I messed up the arithmetic, which is not unusual for me!
A belated reply … yes, I made a computational error in my previous reply. So FTR, the correct numerical answer is indeed 3.82526 knots. The OP’s setup was correct. I messed up the arithmetic, which is not unusual for me!