Aladder 10 meters long rests on horizontal ground and leans against a vertical wall. the foot of the ladder is pulled away from the wall at the rate of 0.4 m/sec. how fast is the top sliding down the wall when the foot of the ladder is 6 m from the wall?

0.3 m/s

Explanation:

Given

Length of ladder L=10 m

Foot of ladder is Pulled away at the rate of 0.4 m/s

Let the distance of foot of ladder be x m from origin and y be the distance of top of ladder from origin

from Pythagoras we can say that

differentiating w.r.t time we get

and at x=6m , y=8 m using Pythagoras

negative indicates that ladder is coming down

the gas collects in coils that then becomes a liquid that then flows through the coils inside the refrigerator

probably not the "magnets"in the magnet, so to speak, are thought to be electrons orbiting in shells. vurrent loops two sides to the loop