Ladder Rate of Change Problems

Ladder Rate of Change Problems

Assessment

Interactive Video

Physics

9th - 10th Grade

Hard

Created by

Sophia Harris

FREE Resource

The video tutorial explores a counterintuitive problem involving a ladder sliding down a wall. The instructor sets up the problem, defines variables, and applies the Pythagorean theorem to relate the ladder's height and distance from the wall. Using calculus, the rate at which the ladder's top slides down is calculated, revealing a non-constant rate. The instructor discusses the implications of this result, highlighting the difference between intuitive expectations and mathematical reality.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial rate at which the bottom of the ladder slides away from the wall?

2 meters per second

8 meters per second

4 meters per second

6 meters per second

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which variable represents the distance of the ladder's base from the wall?

x

z

y

h

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What mathematical theorem is used to relate the height and base of the ladder?

Mean value theorem

Pythagorean theorem

Binomial theorem

Fundamental theorem of calculus

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the rate of change of the ladder's height as x approaches 10?

It becomes positive

It approaches zero

It remains constant

It approaches negative infinity

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

At what rate is the top of the ladder sliding down when x is 6 meters?

4 meters per second

3 meters per second

2 meters per second

1 meter per second