statics

Related Questions

• A uniform beam of length 2a rests in equilibrium against a smooth vertical plane and over a smooth peg at a distance h from the plane. If $\theta$ be the inclination of the beam to the vertical, then $\sin 3\theta$ is

  ---

• The greatest and least magnitude of the resultant of two forces of constant magnitude are F and G. When the forces act an angle $2\alpha$, the resultant in magnitudes is equal to

  ---

• The C.G. of three particles placed at the vertices of a triangle is at its

  ---

• A and B are two like parallel forces. A couple of moment H lies in the plane of A and B and is contained with them. The resultant of A and B after combining is displaced through a distance

  ---

• The moment of a system of coplanar forces (not in equilibrium) about three collinear points A,B,C in the plane are ${{G}_{1}},{{G}_{2}},{{G}_{3}}$then,

  ---