Two wires run from the top of a pole 2.6 tall that supports a volleyball net. Th
ID: 2213396 • Letter: T
Question
Two wires run from the top of a pole 2.6 tall that supports a volleyball net. The two wires are anchored to the ground 2.0 apart, and each is 2.0 from the pole(Figure 1) . The tension in each wire is 91 .
What is the tension in the net, assumed horizontal and attached at the top of the pole?
Two wires run from the top of a pole 2.6 tall that supports a volleyball net. The two wires are anchored to the ground 2.0 apart, and each is 2.0 from the pole(Figure 1) . The tension in each wire is 91 . What is the tension in the net, assumed horizontal and attached at the top of the pole?Explanation / Answer
tan(theta1)=2/2.6 theta1=37.56 degree length of each wire=sqrt(2^2+2.6^2)=3.28 m sin(theta2)=1/3.28 theta2=17.75 degree tension in the net=2*91*sin(theta1)*cos(theta2) =105.66 N
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