Related Rates (Calculus)

Question

anonymous · Answer

A street light 15ft high. A man 6ft tall is walking away from the pole at 5 fts. How fast is his shadow moving when he is 40ft from the pole. An explanation would be great. Thanks

zepdrix · Answer

Hmm I haven't dealt with related rates problems involving shadows. This is kinda interesting :o Here is an example problem that might help, http://tutorial.math.lamar.edu/Classes/CalcI/RelatedRates.aspx Take a quick peek at it. Gimme a few minutes, I'll try to explain this one if I can.

zepdrix · Answer

The example is down the page a ways.

anonymous · Answer

ok I'm looking right now.

anonymous · Answer

great link btw.

zepdrix · Answer

|dw:1366921558108:dw|I wanna try to use the same notation they did, just in case we get stuck somewhere.