×
Get Full Access to Calculus: Early Transcendentals - 1 Edition - Chapter 3 - Problem 69re
Get Full Access to Calculus: Early Transcendentals - 1 Edition - Chapter 3 - Problem 69re

×

# RE Viewing angle A man whose eye level is 6 ft above the

ISBN: 9780321570567 2

## Solution for problem 69RE Chapter 3

Calculus: Early Transcendentals | 1st Edition

• Textbook Solutions
• 2901 Step-by-step solutions solved by professors and subject experts
• Get 24/7 help from StudySoup virtual teaching assistants

Calculus: Early Transcendentals | 1st Edition

4 5 1 401 Reviews
29
4
Problem 69RE

RE Viewing angle? A man whose eye level is 6 ft above the ground walks toward a billboard at a rate of 2 ft/s. The bottom of the billboard is 10 ft above the ground and it is 15 ft high. The man’s viewing angle is the angle formed by the lines between the man’s eyes and the top and bottom of the billboard. At what rate is the viewing angle changing when the man is 30 ft from the billboard?

Step-by-Step Solution:

Solution Step 1: Given A man whose eye level is 6 ft above the ground walks toward a billboard at a rate of 2 ft/s. The bottom of the billboard is 10 ft above the ground and it is 15 ft high. The man’s viewing angle is the angle formed by the lines between the man’s eyes and the top and bottom of the billboard Let D be the distance the man is from the bill board,and let be the angle between his eye level and the line of sight to the bottom of the bill board, and let be the angle between his line of sight to the bottom of the bill board and his line of sight to the top of the billboard

Step 2 of 2

#### Related chapters

Unlock Textbook Solution