Re: [Phys-l] C & C Trajectories

[chuck britton <britton@ncssm.edu>]

A congruent problem of a monk who traveled up a mountain and back  
down - was used in my intro calculus class as an example of the Mean  
Value Theorem and it's wide ranging power.



On Jun 21, 2008, at Jun 21(Sat) 1:31 , Brian Whatcott wrote:

> Click and Clack offered a version of the following puzzler
> this morning.
>
> A family of four drove up the west coast 400 miles on Saturday,
> starting at 8 a.m. They arrived at their destination at 4 p.m.
> Three of them returned home the following day by the same route,
>   in the same car, starting at 11 a.m. Sunday.
>
> The question: what is the probability that the car passed the
> same spot at the same time of day, going both ways?
> I was surprised that the answer was not immediately obvious.
> To me at least.
> The idea of space time diagrams came to mind.
>
>
> Brian Whatcott    Altus OK    Eureka!
>
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