The necessary and sufficient requirement for equilibrium of an object that is su

Question

The necessary and sufficient requirement for equilibrium of an object that is subject to two-dimensional loading is:

The summation of the forces in the x direction equals zero and the summation of forces in the y direction equals zero. The forces must be collinear. The summation of the moments about any point on or off the object is zero. The summation of the forces in the x direction equals zero, the summation of the forces in the y direction equals zero, and the summation of the moments about any point on or off the body is zero.

Explanation / Answer

Answer is D. The Summation of the forces in the x direction equals zero, the summation of the forces in the y direction equals zero, and the summation of the moments about any point on or off the body is zero.

Answer is D

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