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1. A 12 ft ladder weighing 40 lb is place. When a 180 In Man reaches a point 8ftfrom the lower end, the ladder is about to slip. Determine the coefficient of friction between the ladder and the floor. he coefficient of friction between the ladder and the wall is 0.20. The angle between the floor and the ladder is 60 degre e. ans. 0.3529

1. A 12 ft ladder weighing 40 lb is place. When a 180 In Man reaches a point 8ftfrom the lower end, the ladder is about to slip. Determine the coefficient of friction between the ladder and the floor. he coefficient of friction between the ladder and the wall is 0.20. The angle between the floor and the ladder is 60 degre e. ans. 0.3529

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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Please show complete solutions to these 3 problems. Thanks!
1. A 12 ft ladder weighing 4O lb is place. When a 180 In Man reaches a point 8ftfroM the lower end, the ladder is about to slip. Determine the coefficient of friction between the ladder and the floor. he coefficient of friction between the ladder and the wall is 0.20. The angle between the floor and the ladder is 60 degree. ans. 0.3529 2. A uniform bar AB, 1 00 CM long. weighing 80 N has an upward force of 60 N applied to the bar 20CM froM end S, and a downward force of 70 and 40 N act respectively at A and B. Find the location of equilibrant. 3. A 600 N block rest in a surface incline at 30 deg. Determine the horizontal force P Required to prevent the block froM sliding down. angle of friction between the block and he inclined is 15 deg. ans. 160N
Transcribed Image Text:1. A 12 ft ladder weighing 4O lb is place. When a 180 In Man reaches a point 8ftfroM the lower end, the ladder is about to slip. Determine the coefficient of friction between the ladder and the floor. he coefficient of friction between the ladder and the wall is 0.20. The angle between the floor and the ladder is 60 degree. ans. 0.3529 2. A uniform bar AB, 1 00 CM long. weighing 80 N has an upward force of 60 N applied to the bar 20CM froM end S, and a downward force of 70 and 40 N act respectively at A and B. Find the location of equilibrant. 3. A 600 N block rest in a surface incline at 30 deg. Determine the horizontal force P Required to prevent the block froM sliding down. angle of friction between the block and he inclined is 15 deg. ans. 160N
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