A 30-ft ladder leaning against a wall begins to slide.How fast is the top of the ladder sliding down the wall at the instant of time when the bottom of the ladder is 18 ft from the wall and sliding away from the wall at the rate of 7 ft/sec?
Hint: Refer to the accompanying figure.By the Pythagorean theorem,
.Find when and .

Question

A 30-ft ladder leaning against a wall begins to slide.How fast is the top of the ladder sliding down the wall at the instant of time when the bottom of the ladder is 18 ft from the wall and sliding away from the wall at the rate of 7 ft/sec?
Hint: Refer to the accompanying figure.By the Pythagorean theorem,
 .Find  when  and  .

Quizplus · Accepted Answer

The Answer of A 30-ft ladder leaning against a wall begins to slide.How fast is the top of the ladder sliding down the wall at the instant of time when the bottom of the ladder is 18 ft from the wall and sliding away from the wall at the rate of 7 ft/sec?
Hint: Refer to the accompanying figure.By the Pythagorean theorem,
 .Find  when  and  .

A 30-Ft Ladder Leaning Against a Wall Begins to Slide