related rates: the streetlight and shadow problem

Related rates, the streetlight and shadow problem. Calculus 1 and AP calculus AB
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[@FreshBeatles]

2:32 Everything after this point blew my mind it all makes sense now

[@RosieWolf]

This exact problem was on my calculus test and I didn’t know what to do so I just skipped it, thanks for your help for the future though 😂

[@hanhanhanool1738]

I've been watching so many videos trying to understand this concept and this specific question and your video finally gave me the "Aha!" moment I was looking for. On top of that, you explained it very well under 5 minutes! Thank you so much

[@gstronggaming]

Thanks for making these videos! I've been binge watching you getting ready for finals

[@ronaldrosete4086]

Waiting for your optimization content. Thank you, bprp.

[@starzfn9109]

Thank you for your videos 🙏

[@Nathanator]

Thank you so much!

[@akifnorzaimi]

Wow this question is pretty similar with what I have before in test and keep on wondering how to do this

[@boredomgotmehere]

Hi sir, how did you get 6dx/dt?

[@jtlbb2]

One of the things that makes this problem tricky is that his distance from the pole, 40 ft, never mattered. I solved this problem correctly but kept trying to go back and incorporate the 40 ft some how lol.

[@faraznairooz4938]

why is the answer dy/dt+dx/dt

[@ikouassenhassan3906]

x=40ft not used ?

[@trelligan42]

I was wondering that myself. Let's say we want to know the speed when he's 10 feet away; you would get the same answer? That has to be wrong because the angle's different.

[@tastytesty]

The question that makes me realize that I will never get into MIT.

[@kuristan6896]

Isn’t it -5 since His walking away from the pole?

[@MohammadJadallah-tp7nk]

Nope if he’s walking away from a point then it’s +value while if he’s walking toward a point in other word he’s getting closer to a point so it’s a -value

[@kuristan6896]

@@MohammadJadallah-tp7nk thank you for the clarification 🫶 and I hope to learn more stuff

[@baijnathkumar8362]

I just found dy/dt and i though that's the answer but now i understand why dx/dt+dy/dt is answer.

[@dublindark7945]

What color is math?

[@tottithefruity]

Blue

[@dublindark7945]

@@tottithefruity facts

[@khakiturtle6776]

Red

[@broytingaravsol]

shawdow

[@onlyAerik]

bro you only answered part A and called it done.