2. The 30-in slender bar weighs 20Ib, mounted on a vertical shaft at Oinitially rotates at w = +10 rad/s. If a12"torque M = +100 lb-in is applied tothe bar through its shaft, calculate%3D18the reactions at O after the barrotates for 1 sec.

Calculate the moment of inertia of the slender bar about the point O. Using Parallel axis theorem:…

2. The 30-in slender bar weighs 20 Ib, mounted on a vertical shaft at O initially rotates at w = +10 rad/s. If a torque M = +100 lb-in is applied to the bar through its shaft, calculate the reactions at O after the bar rotates for 1 sec.

2. The 30-in slender bar weighs 20 Ib, mounted on a vertical shaft at O initially rotates at w = +10 rad/s. If a torque M = +100 lb-in is applied to the bar through its shaft, calculate the reactions at O after the bar rotates for 1 sec.

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 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...

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Concept explainers

Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.

Question

2. The 30-in slender bar weighs 20
Ib, mounted on a vertical shaft at O
initially rotates at w = +10 rad/s. If a
12"
torque M = +100 lb-in is applied to
the bar through its shaft, calculate
%3D
18
the reactions at O after the bar
rotates for 1 sec.

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