statics

Related Questions

• Let P, 2P and 3P be the forces acting along AB, BC, CA of an equilateral $\Delta ABC$. Suppose R is the magnitude of their resultant and $\theta $the angle made by the resultant with the side BC, then

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• The resultant of two forces P and Q is R. If one of the forces is reversed in direction, the resultant becomes ${R}'$, then

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• A heavy uniform rod, 15cm long, is suspended from a fixed point by strings fastened to its ends, their lengths being 9 and 12 cm. If $\theta$ be the angle at which the rod is inclined to the vertical, then $\sin \theta =$

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• Let a force P be represented by the straight line AB and O is any point. Then the moment of P about O is represented in magnitude by

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• A body is on the point of sliding down an inclined plane under its own weight. If the inclination of the plane to the horizon be ${{30}^{o}}$ , the angle of friction will be

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