gaiwollol Kongre 53. Grade Resistance Approximate to the nearest tenth of a degree for the given grade resistance F and vehicle weight W, where F = W sin 0. (a) F = 350 lb, W = 6000 lb (b) F = 160 lb, W = 4500 lb
gaiwollol Kongre 53. Grade Resistance Approximate to the nearest tenth of a degree for the given grade resistance F and vehicle weight W, where F = W sin 0. (a) F = 350 lb, W = 6000 lb (b) F = 160 lb, W = 4500 lb
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
Related questions
Question
Please explain question 53
Transcribed Image Text:(a) Find the angular velocity of the Ferris wheel in
radians per second.
(b) What is the linear speed in feet per second of a per-
son who is riding this Ferris wheel?
50. Fan Speed The blades of a fan have a 25-inch diam-
eter and rotate at 400 revolutions per minute.
(a) Find the angular velocity of a fan blade.
(b) Estimate the linear speed in inches
the tip of a fan blade.
per
second at
51. Height of a Tree Eighty feet from the trunk of a tree
on level ground, the angle of elevation of the top of
the tree is 48°. Estimate the height of the tree to the
nearest foot.
52. Angle of Elevation Find the angle of elevation of the
top of a 35-foot building at a horizontal distance of
52 feet.
53. Grade Resistance Approximate to the nearest
tenth of a degree for the given grade resistance F and
vehicle weight W, where F = W sin 0.
(a) F = 350 lb, W = 6000 lb
(b) F = 160 lb, W 4500 lb
54. Highway Grade (Refer to Exercise 53.) Suppose an
uphill grade of a highway can be modeled by the line
y = 0.05x.
(a) Find the grade of the hill.
(b) Determine the grade resistance for a gravel truck
that weighs 30,000 pounds.
55. Distance Between Cities Cheyenne, Wyoming, and
Colorado Springs, Colorado, have nearly the same
longitude of 104°45'W. The latitude of Cheyenne
De
age
57. Mc
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(b)
(c)
58. Pha
0, th
Solve
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