Asked by Grace

A ladder is 25 feet long and leaning against a vertical wall at 3 ft/sec. Suppose we wish to determine how fast the top of the ladder is sliding down the wall when the bottom is 15 ft from the wall

Thank you!

Answers

Answered by Writeacher
Fay/Grace --

You need to show some work on what you've posted. Otherwise, the math tutors will think you just want to copy the answers down.
Answered by bobpursley
use right angle formula
c^2=a^2+b^2
then take the derivative..with respect to time..
2c dc/dt=2ada/dt + 2b db/dt
you know dc/dt, da/dt, solve for db/dt.
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