Monday

March 30, 2015

March 30, 2015

Posted by **chris** on Monday, December 8, 2008 at 4:10pm.

- calculus helpppp! -
**bobpursley**, Monday, December 8, 2008 at 4:40pmUsing Pythagorean theorm,

length^2=b^2+ h^2

where b is the base length, and h is the height.

Taking the derivative..

0=2b db/dt + 2h dh/dt

you are given db/dt, solve for dh/dt

For the second part, you will have to find b and h at 30 sec. b will be .40*30, solve for h, and again, you have it.

**Answer this Question**

**Related Questions**

Calculus - Suppose a ladder of length 36 feet rests against a wall, and we pull ...

phsics - uniform ladder 25 ft long rests against a smooth vertical wall. The ...

Calculus - a 5m ladder rests against a vertical wall. The top of the ladder ...

Math 2 - The bottom of the ladder rests on a horizontal flat surface and the top...

Calculus Ladder Problem - A ladder 20 ft long rests against a vertical wall. Let...

Calculus 1 - A ladder 10ft long rests against a vertical wall. If the bottom on ...

Calculus - A ladder 10 ft long rests against a vertical wall. If the bottom on ...

calculus - A 15-ft ladder rests against a vertical wall. If the top of the ...

calculus - A 25-ft ladder rests against a vertical wall. If the bottom of the ...

Calculus - A ladder is leaning against the wall of a house.The base of the ...