A force P of 70N is applied by a rider to the front hand brake of a bicycle (P is the resultant of an evenly distributed pressure). As the hand brake pivots at A, a tension T develops in the 460- mm long brake cable (Ae = 1.075 mm2) which elongates by 6 =0.214 mm. Find normal stress o and strain ɛ in the brake cable. Hand brake pivot A Brake cable, L = 460 mm 37.5 mm/A) P (Resultant of distributed pressure) 50 mm Uniform hand -100 mm brake pressure

A force P of 70N is applied by a rider to the front hand brake of a bicycle (P is the resultant of an evenly distributed pressure). As the hand brake pivots at A, a tension T develops in the 460- mm long brake cable (Ae = 1.075 mm2) which elongates by 6 =0.214 mm. Find normal stress o and strain ɛ in the brake cable. Hand brake pivot A Brake cable, L = 460 mm 37.5 mm/A) P (Resultant of distributed pressure) 50 mm Uniform hand -100 mm brake pressure

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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Concept explainers

Center of Gravity and Centroid

The term center of gravity indicates the position or location of a point about which the whole weight of a body or system is supposed to be concentrated, which means the whole weight of the body or system works through this point. It is closely related to mass distribution. For all positions of the body, the center of gravity would be a single point.

Question

...

A force P of 70 N is applied by a rider to the front hand brake of
a bicycle (P is the resultant of an evenly distributed pressure).
As the hand brake pivots at A, a tension T develops in the 460-
mm long brake cable (Ae = 1.075 mm2) which elongates by 6
=0.214 mm. Find normal stress o and strain ɛ in the brake
cable.
Brake cable, L = 460 mm Hand brake pivot A
37.5 mm/ A
P (Resultant
of distributed
pressure)
50 mm
Uniform hand
-100 mm
brake pressure

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3