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The door to an airplane hangar consists of two uniform sections, which are hinged at the middle as shown in Fig. is attached to a bar along the bottom edge of the door. Smooth rollers at the ends of the bar C run in a smooth ver- tical channel. If the door is 30 ft wide, 15 ft tall, and weighs 1620 lb, . The door is raised by means of a cable, which Plot P, the force required to hold the door open, as a function of the door opening height h (0.5 shs 14.5 ft). 7.5 ft B 7.5 ft

The door to an airplane hangar consists of two uniform sections, which are hinged at the middle as shown in Fig. is attached to a bar along the bottom edge of the door. Smooth rollers at the ends of the bar C run in a smooth ver- tical channel. If the door is 30 ft wide, 15 ft tall, and weighs 1620 lb, . The door is raised by means of a cable, which Plot P, the force required to hold the door open, as a function of the door opening height h (0.5 shs 14.5 ft). 7.5 ft B 7.5 ft

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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The door to an airplane hangar consists of two uniform sections, which are hinged at the middle as shown in Fig. is attached to a bar along the bottom edge of the door. Smooth rollers at the ends of the bar C run in a smooth ver- tical channel. If the door is 30 ft wide, 15 ft tall, and weighs 1620 lb, . The door is raised by means of a cable, which Plot P, the force required to hold the door open, as a function of the door opening height h (0.5 shs 14.5 ft). 7.5 ft B 7.5 ft
Transcribed Image Text:The door to an airplane hangar consists of two uniform sections, which are hinged at the middle as shown in Fig. is attached to a bar along the bottom edge of the door. Smooth rollers at the ends of the bar C run in a smooth ver- tical channel. If the door is 30 ft wide, 15 ft tall, and weighs 1620 lb, . The door is raised by means of a cable, which Plot P, the force required to hold the door open, as a function of the door opening height h (0.5 shs 14.5 ft). 7.5 ft B 7.5 ft
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