# 6.2 Related Ratesap Calculus

Related Rates Day 1 Worksheet 04 - HW Solutions Related Rates Online Practice 05 Wall to Post Solution Videos Related Rates Day 2 Worksheet 05 - HW Solutions Related Rates and Optimization Practice 06 - HW Solutions (Coming Soon) Related Rates Inverted Cone FR Practice 07 Solutions Related Rates and Optimization Review Sheet 07.

- 6.2 Related Ratesap Calculus Pdf
- 6.2 Related Ratesap Calculus Answers
- 6.2 Related Ratesap Calculus Worksheet
- 6.2 Related Ratesap Calculus Solutions

- Whitman College: David Guichard's 'Calculus, Chapter 6: Applications of the Derivative, Section 6.2: Related Rates' URL Read Section 6.2 (pages 127-132). Another application of the chain rule, related rates problems apply to situations where multiple dependent variables are changing with respect to the same independent variable.
- AP Calculus Related Rates Critical Homework 1a) The volume of a cube is changing at the constant rate of 75 cubic cm/sec. Find the rate of change of an edge of the cube when the length of the edge is 5 cm. 1b) Find the rate of change of the surface area when the surface area is 24 square cm.

*i.e.*you are probably on a mobile phone). Due to the nature of the mathematics on this site it is best views in landscape mode. If your device is not in landscape mode many of the equations will run off the side of your device (should be able to scroll to see them) and some of the menu items will be cut off due to the narrow screen width.

### Section 3-11 : Related Rates

- In the following assume that (x) and (y) are both functions of (t). Given (x = - 2), (y = 1) and (x' = - 4) determine (y') for the following equation. [6{y^2} + {x^2} = 2 - {x^3}{{bf{e}}^{4 - 4y}}] Solution
- In the following assume that (x), (y) and (z) are all functions of (t). Given (x = 4), (y = - 2), (z = 1), (x' = 9) and (y' = - 3) determine (z') for the following equation. [xleft( {1 - y} right) + 5{z^3} = {y^2}{z^2} + {x^2} - 3] Solution
- For a certain rectangle the length of one side is always three times the length of the other side.
- If the shorter side is decreasing at a rate of 2 inches/minute at what rate is the longer side decreasing?
- At what rate is the enclosed area decreasing when the shorter side is 6 inches long and is decreasing at a rate of 2 inches/minute?

- A thin sheet of ice is in the form of a circle. If the ice is melting in such a way that the area of the sheet is decreasing at a rate of 0.5 m
^{2}/sec at what rate is the radius decreasing when the area of the sheet is 12 m^{2}? Solution - A person is standing 350 feet away from a model rocket that is fired straight up into the air at a rate of 15 ft/sec. At what rate is the distance between the person and the rocket increasing
**(a)**20 seconds after liftoff?**(b)**1 minute after liftoff? Solution - A plane is 750 meters in the air flying parallel to the ground at a speed of 100 m/s and is initially 2.5 kilometers away from a radar station. At what rate is the distance between the plane and the radar station changing
**(a)**initially and**(b)**30 seconds after it passes over the radar station? Solution - Two people are at an elevator. At the same time one person starts to walk away from the elevator at a rate of 2 ft/sec and the other person starts going up in the elevator at a rate of 7 ft/sec. What rate is the distance between the two people changing 15 seconds later? Solution
- Two people on bikes are at the same place. One of the bikers starts riding directly north at a rate of 8 m/sec. Five seconds after the first biker started riding north the second starts to ride directly east at a rate of 5 m/sec. At what rate is the distance between the two riders increasing 20 seconds after the second person started riding? Solution
- A light is mounted on a wall 5 meters above the ground. A 2 meter tall person is initially 10 meters from the wall and is moving towards the wall at a rate of 0.5 m/sec. After 4 seconds of moving is the tip of the shadow moving
**(a)**towards or away from the person and**(b)**towards or away from the wall? Solution - A tank of water in the shape of a cone is being filled with water at a rate of 12 m
^{3}/sec. The base radius of the tank is 26 meters and the height of the tank is 8 meters. At what rate is the depth of the water in the tank changing when the radius of the top of the water is 10 meters? Note the image below is not completely to scale…. Solution - 11. The angle of elevation is the angle formed by a horizontal line and a line joining the observer’s eye to an object above the horizontal line. A person is 500 feet way from the launch point of a hot air balloon. The hot air balloon is starting to come back down at a rate of 15 ft/sec. At what rate is the angle of elevation, (theta ), changing when the hot air balloon is 200 feet above the ground. See the (probably bad) sketch below to help visualize the angle of elevation if you are having trouble seeing it. Solution

LINK TO SCREENCAST LESSON VIDEOS HERE!!!

** LINKS TO OLD TESTS HERE!!!!**

** The topics below are both AB and BC topics. The topics preceded with an asterisk (*) are BC only topics. All documents are .pdf**

**Course Info:**

**1st Day Handout: Parent/Student Letter**

**1st Day Homework: Academic Integrity, Parent Survey, Student Survey**

**AP Calculus Syllabus: AB, BC**

** Open House Info: AB & BC, Bingo, & Schedule**

**AP Calculus Survival Guide**

**Getting Ready:**

** Appendix: Precalculus stuff to know cold (Notes)**

** Appendix: Parent Function Catalog (Notes)**

** Appendix: The Unit Circle (Notes)**

** Spleen: Prerequisite Algebra Skills (WS/KEY)**

__Chapter P: Calculus Prerequisites__

**P****.1 What is AP Calculus? (Notes)**

** P.2 Parent Functions (Notes, WS/KEY)**

### 6.2 Related Ratesap Calculus Pdf

** P.3 **** Simplifying Expressions (Notes, WS/KEY)**

** P.4 Equations of Lines (Notes, WS)**

** P.5 Domain, Range, and Symmetry (Notes, WS)**

** P.6 Fun with Functions (Notes, WS)**

** P.7 Trigonometry (Notes, WS)**

__Chapter 1: Limits__

** 1.1 Limits & Continuity (Notes/E01/E02-06/E07-09/E010-11/E11-12a/E12b-13, WS/KEY)**

** 1.2 Properties of Limits (Notes/E01-02/E03/, WS/KEY)**

** 1.3 Limits at Infinity (Notes/E01-02/E03-04/E04intro/E04-05/E06-07/, WS/KEY) **

** 1.4 Algebraic Limits (Notes/E01-06/E07/E08-12a/E12b-13a/E13b-15d/E15e-h/E15i-16e/E16/, WS/KEY)**

** 1.4 Xtra Practice (WS/KEY)**

** 1.5 Continuity on Intervals & IVT (Notes/E01-03/E03-06b/E6-10/, WS/KEY) **

__Chapter 2: Differentiation__

**2****.1 Tangent Line & Differentiability (Notes/E01/E01-03/E04-06/E07-09/E10/E11-13/E12-14, WS/KEY) **

**2****.2 Derivatives on the Calculator (Notes/EA/, WS/KEY)**

**2****.3 Basic Differentiation Rules (Notes/E01-06/E07-10/E10-12/E11-12/E13/, WS/KEY)**

** 2.4 Product & Quotient Rules (Notes/E01/E02-03/E04/E05-08/E08-10/E11/, ****WS/KEY****)**

** 2.5 Rates of Change and Particle Motion I (Notes/E01-05/E06/E07-08/E09/, ****WS/KEY****) **

** 2.6 The Chain Rule (Notes/E01a/E01b-f/E01g-04/E05-08/, **** WS/KEY****)**

** 2.7 Implicit Differentiation (Notes/E01-03/E03-06/07a-c/07d-09/E10/, ****WS/KEY****) **

** 2.8 Derivatives of Inverse & Inverse Trig Functions (Notes/E01/E02-03/E4-9/E08-10/E11-13/, ****WS/KEY****)**

** 2.9 Derivatives of Exponential Functions (Notes/E01/E02-05c/E05d-e/E06-07/E08-10/, ****WS/KEY****)**

** 2.10 Derivatives of Log Functions & LOG DIFF (Notes/E01-06/E07-12/, **** WS/KEY****) **

__Chapter 3: Applications of Differentiation__

** 3.1 Extrema on an interval (Notes/E1-3/E4-6/E7-8/E9/E10-11/, ****WS/KEY****) **

**3.2 Rolle's Theorem and the MVT (Notes/E1-2/E3-5/E6/E7/, **** WS/KEY****)**

** 3.3 Increasing, Decreasing, and 1st Derivative Test (Notes/E1-2/E3/E4-5/E6-7/E8/, **** WS/KEY****)**

** 3.4 Concavity and the Second Derivative Test (Notes/E1-2/E3-4a/E4b-c/E4d-e/E4f-6c/E6d-7d/E7e-8/, ****WS/KEY****) **

** 3.5 f, f ', and f '(Notes/E1-2b/E1/E2/E3-4/, **

**WS/KEY**

**)**

** 3.5B Summary Sheet (Notes)**

** 3.6 Optimization (Notes/E1/E1-2/E2-6/E6-9/E10-11/E13-14/, ****WS/KEY****) **

** 3.7 Linearization and Differentials (Notes/E1-2/E3-6, ****WS/KEY****)**

** 3.8 Related Rates (Notes/E1-3/E4-5/E6-7/E8-11/, ****WS/KEY****) **

__Chatper 4: Integration__

** 4.1 Antiderivatives and Indefinite Integration (Notes/E1-3/E4/E5-6d/E6e-f/, ****WS/KEY****)**

** 4.1B Basic Differentiation Practice (WS****/KEY****)**

**4.1C Mixed AP MC Review (WS)**

** 4.2 Numeric Definite Integrals (Notes/E1/E2a-c/E2d-3/E4-7/E8-9/E10-13/E14/, **** WS/KEY****)**

** 4.3 The FTOC I & II and MVT II (Notes/E1/E1b-4/E5-9a/E8-11/E12-13/E14-17/E18-20/E21/, **** WS****/KEY)**

**4.4 Integration by u-Substitution (Notes/E1-4/E3-8/E9-13/E13-18b/E18b-24a/E24bce/E24d-25/E24c-e/E25-26, **

**WS/KEY**

**)**

__Chapter 5: Differential Equations & Modeling__

** 5.1 Separable Differential Equations (Notes/E1-3/E4-8/E9-12/, ****WS/KEY****) **

** 5.2 Slope Fields (Notes/E1-7/E8-17/, ****WS****/KEY)**

** 5.2B Mega Integration Practice (AB methods) (****WS****)**

** 5.3 *Euler's Method (Notes/E1a/E1b-4/, ****WS****/KEY)**

** 5.4 *Integration by Parts (Notes/E1-8/E8-12/E12-13/, ****WS/KEY****)**

** 5.5 *Partial Fractions & Logistic Growth (Notes/E1-3/E4-8b/, ****WS****/KEY)**

__Chapter 6: Applications of Integration__

** 6.1 Integral as Net Change (Notes/E1-3/E4-5/E6-7/E9, ****WS/KEY****)**

** 6.2 Area between Curves (Notes/E1-5/E4-7a/E5-7/E8/, ****WS/KEY****)**

** 6.3 Volumes (Notes/E1-4/E4-7c/E7-8/E7d-8a/E8b-9/E10-10c/, ****WS/KEY****)**

** 6.4 *Arc Length (Notes/E1-2/E3-6, **** WS/KEY****)**

** 6.5 L'Hôpital's Rule and Indeterminate Forms (Notes/E1-3b/E3c-d/4-5/6-7b/7c-9/, WS/KEY)**

** 6.6 *Improper Integrals (Notes/E1-3/E4-7/E8-11b/E11c-15/E16-19, ****WS/KEY****) **

__Chatper 7: Vector Calculus__

** 7.1 *Intro to Parametric & Vector Calculus (Notes/E1-3/E4-9, **** WS/KEY****)**

### 6.2 Related Ratesap Calculus Answers

** 7.2 *Parametric & Vector Accumulation (Notes/E1-2, ****WS****/KEY) Worksheet II/KEY**

__Chapter 8: Polar Calculus__

** 8.1 *Polar Intro & Derivatives (Notes/E1-2a/E2b-3/E4-7a/E7b-10/, ****WS/KEY****)**

** 8.2 *Polar Area (Notes/E1-2/E3-6/E7-8, **** WS/KEY****)**

__Chapter 9: Sequences & Series__

** 9.1 *Infinite Sequences & Series (Notes/E1-4/E5-8/E9-11/E12-15/E16-20a/E20b-22, ****WS****/KEY)**

**Summary of Tests for Convergence and Series Flow Chart with practice problems**

** 9.2 *Taylor Polynomials (Notes/E1-3/E4-8/, ****WS/KEY****)**

** 9.3 *Power Series I: Taylor & Maclaurin Series (Notes/E1-2a/E2a-2d/E3-5/E6-9/, ****WS/KEY****)**

** 9.4 *Power Series II: Geometric Series (Notes/E1-7/E7-11/E12/E13/, ****WS/KEY****)**

** 9.5 *Lagrange Error Bound (Notes/E1-4/E5, ****WS/KEY****)**

### 6.2 Related Ratesap Calculus Worksheet

**Chapter 10: After the AP Exam**

** 10.1 Trig Substitution Integration (Notes/KEY, WS/KEY)**

### 6.2 Related Ratesap Calculus Solutions

** 10.2 Partial Fraction Decomposition (Notes/KEY, WS/KEY)**

** 10.3 Epsilon-Delta Proofs (Notes/KEY, WS/KEY)**

** 10.4 Newton's Method (Notes/KEY, WS/KEY)**

** 10.5 Surface Area (Notes/KEY, WS/KEY)**

** 10.6 Hyperbolic Trig Functions (Notes/KEY, WS/KEY)**