Strength of Materials
The center of gravity of a uniform lamina lies at

the mid point of its axis
the bottom surface
the center of heavy portion
All of these

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Strength of Materials
Which one of the following statements is not correct

the angle of repose is equal to angle of friction
the tangent of the angle of repose is equal to coefficient of friction
the tangent of the angle of friction is equal to coefficient of friction
the sine of the angle of repose is equal to coefficient to friction

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