The ball of a trailer hitch is subjected to a force F. If failure occurs when the moment o...

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.·lb. determine the largest value F may have and specify the value of α 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 α.

Figure P4.7