A5-meter ladder is leaning against the side of a house. the foot of the ladder is pulled away from the house at a rate of 0.4 m/sec. determine how fast the top of the ladder is descending when the foot of the ladder is 3 meters from the house.

Step-by-step explanation:

By Pythagoras theorem we know that

              Hypotenuse² = Base² + Perpendicular²

                   h² = b² + p²

We have for ladder

                        h = 5 m

                        b = 3 m

                        5² = 3² + p²

                        p = 4 m

Differentiating h² = b² + p² with respect to time

The top of the ladder is descending at 0.3 m/s.

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step-by-step explanation:

with btw u said 100pts but it clearly says

i answerd and just got 10pts

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