|Consider a simple elevator design in which a 15,000 kg car A is con- nected to a 12,000kg counterweight B. Suppose that a failure of the drive system occurs (the failure does not affect the rope connecting A and B) when the car is at rest and 50 m above its buffer, causing the elevator car to fall. Model the car and the counterweight as particles and the cord as massless and inextensible, and model the action of car the emergency brakes using a Coulomb friction model with kinetic friction coefficient µk = 0.5 and a normal force equal to 35% of the car's weight. Determine the speed with which the car impacts the buffer. ca buft
|Consider a simple elevator design in which a 15,000 kg car A is con- nected to a 12,000kg counterweight B. Suppose that a failure of the drive system occurs (the failure does not affect the rope connecting A and B) when the car is at rest and 50 m above its buffer, causing the elevator car to fall. Model the car and the counterweight as particles and the cord as massless and inextensible, and model the action of car the emergency brakes using a Coulomb friction model with kinetic friction coefficient µk = 0.5 and a normal force equal to 35% of the car's weight. Determine the speed with which the car impacts the buffer. ca buft
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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