PROBLEM 74:A hollow circular pipe 5 mm thick withoutside diameter of 75 mm is subjectedto a torque of 3 kNm at its free end. Findthe shear stress in the bar.a. 83.10 MPaC. 85.25 MPab. 84.15 MPad. 82.75 MPaPROBLEM 75:A car travels on a 4% uphill road at 60kph. The coefficient of friction betweenthe road surface and the tire is 0.3.Cormpute the braking distance.a. 56.74 mC. 41.66 mb. 46.57 md. 39.37 m

This question is based on the torsional equation. The torsional equation is as follows: Tτmax=Jr…

PROBLEM 74: A hollow circular pipe 5 mm thick with outside diameter of 75 mm is subjected to a torque of 3 kNm at its free end. Find the shear stress in the bar. a. 83.10 MPa C. 85.25 MPa b. 84.15 MPa d. 82.75 MPa

PROBLEM 74: A hollow circular pipe 5 mm thick with outside diameter of 75 mm is subjected to a torque of 3 kNm at its free end. Find the shear stress in the bar. a. 83.10 MPa C. 85.25 MPa b. 84.15 MPa d. 82.75 MPa

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Methods to Determine Vertical Stress

The load applied to the soil is transferred to the underground. The presence of water at soil pores and solid grains above the soil are the primary components that are responsible for the effective load transfer. Due to the load acting, the internal component of the soil or the underground formations undergoes deformations or a tectonic shift. The amount of deformation depends upon the amount of load acting on the soil surface, which indeed, depends on the weight of everything present above the soil. Due to this, the underground soil element develops internal stresses which try to resist the tectonic changes.

Question

PROBLEM 74:
A hollow circular pipe 5 mm thick with
outside diameter of 75 mm is subjected
to a torque of 3 kNm at its free end. Find
the shear stress in the bar.
a. 83.10 MPa
C. 85.25 MPa
b. 84.15 MPa
d. 82.75 MPa
PROBLEM 75:
A car travels on a 4% uphill road at 60
kph. The coefficient of friction between
the road surface and the tire is 0.3.
Cormpute the braking distance.
a. 56.74 m
C. 41.66 m
b. 46.57 m
d. 39.37 m

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