The subway train shown is traveling at a speed of 25 mi/h when the brakes are fully applied on the wheels of cars B andC, causing them to slide on the track, but are not applied on the wheels of car A. The coefficient of kinetic friction is 0.35between the wheels and the track.v/mi/h40 tons50 tons40 tonsDetermine the distance required to bring the train to a stop. (You must provide an answer before moving to the next part.)The distance required to bring the train to a stop isft. The subway train shown is traveling at a speed of 25 ml/h when the brakes are fully applied on the wheels of cars B andC, causing them to slide on the track, but are not applied on the wheels of car A. The coefficient of kinetic friction is 0.35between the wheels and the track.v/mi/h40 tons50 tons40 tonsDetermine the force in each coupling. Also, determine if each of the coupling is in tension or compression.kips.The force in coupling AB isThe coupling AB is in tensionThe force in coupling BC iskips.The coupling BC is in compressionV

velocity of subway train initially =25 mi/h=36.6667 ft/scoefficient of kinetic friction(mu)=0.35

Answered: C, causing them to slide on the track,…

C, causing them to slide on the track, but are not applied on the wheels of car A. The coefficient of kinetic friction is 0.35 between the wheels and the track. v/mi/h 40 tons B 50 tons 40 tons

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.79P: The coefficient of rolling resistance between the 30-kg lawn roller and the ground is r=0.1. (a)...

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Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.

Question

The subway train shown is traveling at a speed of 25 mi/h when the brakes are fully applied on the wheels of cars B and
C, causing them to slide on the track, but are not applied on the wheels of car A. The coefficient of kinetic friction is 0.35
between the wheels and the track.
v/mi/h
40 tons
50 tons
40 tons
Determine the distance required to bring the train to a stop. (You must provide an answer before moving to the next part.)
The distance required to bring the train to a stop is
ft.

The subway train shown is traveling at a speed of 25 ml/h when the brakes are fully applied on the wheels of cars B and
C, causing them to slide on the track, but are not applied on the wheels of car A. The coefficient of kinetic friction is 0.35
between the wheels and the track.
v/mi/h
40 tons
50 tons
40 tons
Determine the force in each coupling. Also, determine if each of the coupling is in tension or compression.
kips.
The force in coupling AB is
The coupling AB is in tension
The force in coupling BC is
kips.
The coupling BC is in compression
V

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