Calculus 1 - Derivatives and Related Rates (14 of 24) Sliding Ladder: Example 2

I this video I will calculate the height of a ladder resting against a wall when the ladder is sliding down.

Next video in this series can be seen at:

[Cristian-ieet]

A grand explanation. Thank you teacher.

[williamwakefield]

Fantastic explanation. Thanks for your help.

[abdullahshahid]

Thank you so much it was pretty helpful

[franciscoolguin]

Michael, Thanks for your videos... There is any way to download the images you have on each video, I mean where all the formulas are shown in colors? Thanks.

[Hoodratliker]

What if we want to know the length of the ladder?

[jordanfeng]

Shall we use the triangle method like x^2+y^2=l^2 and (x+0.2)^2+(y-0.15)^2=l^2 thus can get y=4.14?

[joshuaaa]

Why the ratio of the sides of the ladder is different than the ratio of the speeds? They must be same, isn't it?