statics

Related Questions

• If the angle $\alpha $ between two forces of equal magnitude is reduced to $\alpha -\frac{\pi }{3}$, then the magnitude of their resultant becomes $\sqrt{3}$times of the earlier one. The angle $\alpha $is

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• When two equal forces are inclined at an angle $2\alpha $, their resultant is twice as great as when they act at an angle $2\beta $, then

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• A body consists of a solid cylinder with radius a and height a together with a solid hemisphere of radius a placed on the base of the cylinder. The centre of gravity of the complete body is

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• The height from the base of a pillar must be end B of a rope AB of given length be fixed so that a man standing on the ground and pulling at its other end with a given force may have the greatest tendency to make the pillar overturn is

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• Forces of magnitudes $P-Q,P$and $P+Q$act at a point parallel to the sides of an equilateral triangle taken in order. The resultant of these forces, is

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