by hagman <google@[EMAIL PROTECTED]
>
Apr 6, 2008 at 02:25 PM
On 6 Apr., 21:17, RKL <mary...@[EMAIL PROTECTED]
> wrote:
> Here's an interesting one:
>
> A lifeguard stationed on a beach with a straight shoreline sees a
> swimmer in trouble 150 meters down the beach and 60 meters out in the
> water.
>
> The lifeguard can run 8 m/s on the beach and swim 2 m/s in the water.
>
> What path down the shoreline and out into the water should the
> lifeguard take to reach the swimmer in the SHORTEST AMOUNT OF TIME?
>
> --
> He who waits to do a great deal of good at once, will never do anything.
Use what you learned in optics :)
