Problem 16. At a certain height, a tree trunk has a circular cross section. The radius R(t) of that cross section grows at a rate modeled by the function dR 1 (3 + sin(t²)) centimeters per year de 16 for 0sts 3, where time t is measured in years. At time t = 0, the radius is 6 centimeters. The area of the cross section at time t is denoted by A(t). (a) Write an expression, involving an integral, for the radius R(t) for 0 sI 3. Use your expression to find R(3). (b) Find the rate at which the cross-sectional area A(t) is increasing at time t = 3 years. Indicate units of measure. (c) Evaluate A'(1) dt. Using appropriate units, interpret the meaning of that integral in terms of cross- sectional area.
Problem 16. At a certain height, a tree trunk has a circular cross section. The radius R(t) of that cross section grows at a rate modeled by the function dR 1 (3 + sin(t²)) centimeters per year de 16 for 0sts 3, where time t is measured in years. At time t = 0, the radius is 6 centimeters. The area of the cross section at time t is denoted by A(t). (a) Write an expression, involving an integral, for the radius R(t) for 0 sI 3. Use your expression to find R(3). (b) Find the rate at which the cross-sectional area A(t) is increasing at time t = 3 years. Indicate units of measure. (c) Evaluate A'(1) dt. Using appropriate units, interpret the meaning of that integral in terms of cross- sectional area.
Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter1: Trigonometry
Section1.5: Graphs Of Sine And Cosine Functions
Problem 80E: For a person at rest, the velocity v (in liters per second) of airflow during a respiratory cycle...
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