A ladder 10 ft long rests against a vertical wall. If the bottom of the ladder slides away from the wall at a rate of 1.1 ft/s, how fast is the angle between the ladder and the ground changing when the bottom of the ladder is 8 ft from the wall? (That is, find the angle's rate of change when the bottom of the ladder is 8 ft from the wall.)

Question

anonymous · Answer

|dw:1456883035674:dw|
negative sign shows angle is decreasing.

anonymous · Answer

Thank you!!! :)