If you have learnt some skill in physics, it is not a difficult problem. Give you a clue:
    You can treat the movement of Tom's ship as two part in the polar coordinate system, towards the radius and the polar angle. Then you can get it. Good luck~!

> The path which Tom take is not a linear, right? 
> How can we calculate the path which is not linear? 
> Actually, we only need a time, but I guess to get the time, we should calculate the lenght of the path to the mother ship.
> 
> Thanx for reading.
> 
>  

• Re:How can we solve this problem? (79) ACM30413 2005-10-20 00:00:07