- #1

- 2

- 0

## Homework Statement

[PLAIN]http://img214.imageshack.us/img214/194/calcdr.jpg [Broken]

I need to find the optimal path across two points, in two straight line segments. The speed from point A to B is 12ft/s, and 4ft/s from point B to C.

## Homework Equations

## The Attempt at a Solution

I set segment AB as x, BC as y, ED as w, and DC as z. With that, I set up the equations:

x/12 + y/4 = P

and

w + z = 100

However, I am stumped at how to progress from here on. I tried playing around with the trigonometric functions in the triangle, but that seemed to complicate the problem even more. Does anyone has any insight into this?

Last edited by a moderator: