statics

Related Questions

• A uniform ladder rests in limiting equilibrium, its lower end on a rough horizontal plane and its upper end against a smooth vertical wall. If $\theta$ is the angle of inclination of the ladder to the vertical wall and µ is the coefficient of friction, then $\tan\theta$ is equal to

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• If the square of the resultant of two equal forces is equal to $(2-\sqrt{3})$times their product, then the angle between the forces is

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• If forces of magnitude P, Q and R act at a point parallel to the sides BC, CA and AB respectively of a $\Delta ABC$, then the magnitude of their resultant is

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• The resultant of two like parallel forces P, Q passes through a point O. If the resultant also passes through O when Q and R replace P and Q respectively, then

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• A system of five forces whose directions and non-zero magnitudes can be chosen arbitrarily, will never be in equilibrium if n of the forces are concurrent, where

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