If a person bends at the waist with a straight back making an angle of 0 degrees with the horizontal, then the force F exerted on the back muscles can be modeled by the equation shown below, where W is the weight of the person. Complete parts (a) through (c). 0.6W sin (0 +90°) F= sin 12°
If a person bends at the waist with a straight back making an angle of 0 degrees with the horizontal, then the force F exerted on the back muscles can be modeled by the equation shown below, where W is the weight of the person. Complete parts (a) through (c). 0.6W sin (0 +90°) F= sin 12°
Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Additional Topics In Trigonometry
Section3.4: Vectors And Dot Products
Problem 7ECP
Related questions
Question
a) Calculate F when W=120 lb and θ=30°?
b) Use an identity to show that F is approximately equal to W cos θ
c) For what value of θ is F maximum?
![If a person bends at the waist with a straight back making an angle of 0 degrees with the horizontal, then the force F exerted on the back muscles can be modeled by the equation shown below,
where W is the weight of the person. Complete parts (a) through (c).
0.6W sin (0 +90°)
F=
sin 12°](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3ea3400e-20ab-4705-aa5d-320dc8f61f02%2F422eec20-fdf7-4e93-bb7b-219ee90c2fc9%2Fxdv8blg_processed.png&w=3840&q=75)
Transcribed Image Text:If a person bends at the waist with a straight back making an angle of 0 degrees with the horizontal, then the force F exerted on the back muscles can be modeled by the equation shown below,
where W is the weight of the person. Complete parts (a) through (c).
0.6W sin (0 +90°)
F=
sin 12°
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