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A 50 kg traffic light is suspended by two inelas- tic (not elastic) 21 m cables which have a mass of 1.2 kg per meter of length. The cable is such that before the traffic light is added/hanged, the hori- zontal distance from the lowest point of the cable to the end point(s) is/are 20 m. The weight of the traffic light leads to deflection such that position A changes as soon the the weight of the light is added. Answer the following: (a) The above is catenary, explain why? (b) Determine the vertical deflection & of the

A 50 kg traffic light is suspended by two inelas- tic (not elastic) 21 m cables which have a mass of 1.2 kg per meter of length. The cable is such that before the traffic light is added/hanged, the hori- zontal distance from the lowest point of the cable to the end point(s) is/are 20 m. The weight of the traffic light leads to deflection such that position A changes as soon the the weight of the light is added. Answer the following: (a) The above is catenary, explain why? (b) Determine the vertical deflection & of the

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A 50 kg traffic light is suspended by two inelas- tic (not elastic) 21 m cables which have a mass of 1.2 kg per meter of length. The cable is such that before the traffic light is added/hanged, the hori- zontal distance from the lowest point of the cable to the end point (s) is/are 20 m. The weight of the traffic light leads to deflection such that position A changes as soon the the weight of the light is added. Answer the following: (a) The above is catenary, explain why? 20 m 20 m (b) Determine the vertical deflection ô of the lowest point A relative to its position before the signal is added. B (e) Show that the force at lowest point A acts horizontal when the traffic light weight is zero (N/B: before the weight acts on the ca- ble). 50 kg
Transcribed Image Text:A 50 kg traffic light is suspended by two inelas- tic (not elastic) 21 m cables which have a mass of 1.2 kg per meter of length. The cable is such that before the traffic light is added/hanged, the hori- zontal distance from the lowest point of the cable to the end point (s) is/are 20 m. The weight of the traffic light leads to deflection such that position A changes as soon the the weight of the light is added. Answer the following: (a) The above is catenary, explain why? 20 m 20 m (b) Determine the vertical deflection ô of the lowest point A relative to its position before the signal is added. B (e) Show that the force at lowest point A acts horizontal when the traffic light weight is zero (N/B: before the weight acts on the ca- ble). 50 kg
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