Answered: 01 02 (T2 01 T3 F, b a Figure 5.11…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter4: Dynamics: Force And Newton's Laws Of Motion

Section: Chapter Questions

Problem 12CQ: If the acceleration of a system is zero, are no external forces acting on it? What about internal...

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A traffic light weighing 122 N hangs from a cable tied to two other cables fastened to a support as in 5.11a. The upper cables make angles of θ₁ = 37.0° and θ₂ = 53.0° with the horizontal. These upper cables are not as strong as the vertical cable and will break if the tension in them exceeds 100 N. Does the traffic light remain hanging in this situation, or will one of the cables break?

01
02
(T2
01
T3
F,
b
a
Figure 5.11 (Example 5.4) (a) A traffic light suspended by
cables. (b) The forces acting on the traffic light. (c) The free-body
diagram for the knot where the three cables are joined.

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