12.5 EQUILLIBRIUM OF MOMENTS

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As with forces, moments also experience equilibrium. If we sum moments ABOUT A SINGLE POINT ON A RIGID BODY, they should total zero for the object the remain static.

Try the problem below,

Another category of problems that may be encountered is to be given a moment vector, and a displacement vector, and be expected to find the applied force. This type of problems is complicated by the fact that the cross product is not reversible, but the solution turns out to be simple.

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Consider the example below,

12.5.1 References

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Hibbeler, R.C., Engineering Mechanics: Statics and Dynamics, 6th edition, MacMillan Publishing Co., New York, USA, 1992.