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April 16, 2014

Homework Help: mathematic

Posted by skullhong on Thursday, March 22, 2012 at 8:23am.

A ladder 10 meter long is leaning against a wall. If the top of the ladder is sliding down the wall at 3m/s, how fast is the angle between the top of the ladder and the wall changing when the foot of the ladder is 6 meter away from the wall?

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