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Simple Machines
A simple machine is a device with the help of which heavy loads are lifted…
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Belt Friction
The transmission of power by means of belt or rope drives is possible because of…
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Angle Of Friction, Angle Of Repose And Cone Of Friction
Angle of Friction Consider the block shown in Fig. 5.2 subject to pull P. Let…
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Friction
When a body moves or tends to move over another body, a force opposing the…
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Moment Of Inertia From First Principles
For simple figures, moment of inertia can be obtained by writing the general expression for…
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Theorems of Moments of Inertia
There are two theorems of moment of inertia: (1) Perpendicular axis theorem, and (2) Parallel…
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Second Moments Of Plane Area
The term rdA may be called as moment of area, similar to moment of a…
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Trusses
A truss is a structure made up of slender members pin-connected at ends and is…
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Equilibrium Of Non-Concurrent Force Systems
To satisfy the condition that there should not be translatory motion of the body subjected to coplanar…
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Free Body Diagram
In many problems, it is essential to isolate the body under consideration from the other…