A length of string is attached between two vertical posts. A bird of weight $$\(W\)$$ stands on the middle of the string causing tension $$\(T\)$$ in the string. The string makes an angle of $$\(80^{\circ}\)$$ with each post, as shown. Which of the following expressions is correct?
A.
\(T=\frac{W}{2 \sin 80^{\circ}}\)
B.
\(T=W \times 2 \sin 80^{\circ}\)
C.
\(T=\frac{W}{2 \cos 80^{\circ}}\)
D.
\(T=W \times 2 \cos 80^{\circ}\)
Exam No：wph11-01-que-20240112 Year：2024 Question No：6
Answer:
C
Knowledge points:
CH1 - Mechanics
Solution:
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