Verizon ? 10:45 AM webassign.net My Notes Ask Your 2. 0/2 points | Previous Answ
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Verizon ? 10:45 AM webassign.net My Notes Ask Your 2. 0/2 points | Previous Answers Giancoli7 9.P013 Find the tension in the two wires supporting the 34 kg traffic light shown in the figure below. (Assume that a = 51° and 2 = 39*) × N (left hand wire) 429.2 34320 x N (right hand wire) 3. -2 points Giancoli7 9.P016 My Notes Ask Your Calculate FA and Fe for the beam shown in the figure below. The downward forces represent the weights of machinery on the beam. Assume the beam is uniform and has a mass of 285 kg 4300N 3100N 2200 N FB 0m-3.0m-- 20m 1.0mExplanation / Answer
here,
theta1 = 51 degree
theta2 = 39 degree
mass , m = 34 kg
let the tension in the string be Tl and Tr
equating the forces vertically
Tl * sin(theta1) + Tr * sin(theta) = m * g
Tl * sin(51) + Tr * sin(39) = 34 * 9.81 ...(1)
equating the forces horizontally
Tl * cos(theta1) - Tr * cos(theta2) = 0
Tl * cos(51) - Tr * cos(39) = 0 ....(2)
from (1) and (2)
Tl = 259.2 N
Tr = 209.9 N
the tension in the left string is 259.2 N
the tension in the right string is 209.9 N
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