Repeat Prob. 4.7 if the moment at point B may not exceed 5000 in.·lb.
Prob. 4.7
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.
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