Strength of Materials
D Alembert’s principle is used for

designing safe structures
reducing the problem of kinetics to equivalent statics problem
determining stresses in the truss
stability of floating bodies

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

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

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