An escalator is driven by a chain connected to point A that supports a force F. The rollers at points A and B have frictionless bearings and ride in a loose-fitting track. If a person weighing 200 lb is being lifted at a steady speed and other weights may be neglected, determine the required chain force F and the reactions at the wheels at A and B. 12 in. 4 in. F 200 lb 9 in.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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8. An escalator is driven by a chain connected to point A that supports a force F. The rollers
at points A and B have frictionless bearings and ride in a loose-fitting track. If a person
weighing 200 lb is being lifted at a steady speed and other weights may be neglected,
determine the required chain force F and the reactions at the wheels at A and B.
12 in. 4 in.
F
200 lb
9 in.
Transcribed Image Text:8. An escalator is driven by a chain connected to point A that supports a force F. The rollers at points A and B have frictionless bearings and ride in a loose-fitting track. If a person weighing 200 lb is being lifted at a steady speed and other weights may be neglected, determine the required chain force F and the reactions at the wheels at A and B. 12 in. 4 in. F 200 lb 9 in.
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