The ball of a trailer hitch is subjected to a force F. If failure occurs when the moment of F about point A reaches 10,000 in.-Ib, determine the largest value F may have and the value of a for which the moment about A is the largest. Note that the value of F you determine must not produce a moment about A that exceeds 10,000 in.-lb for any possible value of a. -5 in.--4 in. 6in

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Types of loading

In mechanical terminology, the term load indicates that external force/weight, either constant or variable, acts on a mechanical member/structure. The weight of an object of a specific material is also an external load, and the external force that works on a structure comes under the categories of loading. The external load generates its effects as stress and strain in the structure.