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Problem 2 A load is to be raised 12 ft by the hoisting system shown, developed by ASCE Club students to lift various loads to the ceiling of the Construction Materials Laboratory. Assume gear A is initially at rest, then accelerates uniformly to a speed of 110 rpm in 5 s, and then maintains a constant speed of 110 rpm. Gear A has radius r = 4.0 in, gear B has radius r = 22 in, and drum C has radius rc = 18 in. Drum C rotates with gear B. Determine: (a) the number of revolutions executed by gear A in raising the load, (b) the time required to raise the load to 12 ft.

Problem 2 A load is to be raised 12 ft by the hoisting system shown, developed by ASCE Club students to lift various loads to the ceiling of the Construction Materials Laboratory. Assume gear A is initially at rest, then accelerates uniformly to a speed of 110 rpm in 5 s, and then maintains a constant speed of 110 rpm. Gear A has radius r = 4.0 in, gear B has radius r = 22 in, and drum C has radius rc = 18 in. Drum C rotates with gear B. Determine: (a) the number of revolutions executed by gear A in raising the load, (b) the time required to raise the load to 12 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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Problem 2 A load is to be raised 12 ft by the hoisting system shown, developed by ASCE Club students to lift various loads to the ceiling of the Construction Materials Laboratory. Assume gear A is initially at rest, then accelerates uniformly to a speed of 110 rpm in 5 s, and then maintains a constant speed of 110 rpm. Gear A has radius A 4.0 in, gear B has radius B = Drum C rotates with gear B. = 22 in, and drum C has radius rc = 18 in. Determine: (a) the number of revolutions executed by gear A in raising the load, (b) the time required to raise the load to 12 ft. TB B с Load rc
Transcribed Image Text:Problem 2 A load is to be raised 12 ft by the hoisting system shown, developed by ASCE Club students to lift various loads to the ceiling of the Construction Materials Laboratory. Assume gear A is initially at rest, then accelerates uniformly to a speed of 110 rpm in 5 s, and then maintains a constant speed of 110 rpm. Gear A has radius A 4.0 in, gear B has radius B = Drum C rotates with gear B. = 22 in, and drum C has radius rc = 18 in. Determine: (a) the number of revolutions executed by gear A in raising the load, (b) the time required to raise the load to 12 ft. TB B с Load rc
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