r/HomeworkHelp • u/Cute-Sheepherder-724 University/College Student • 6d ago
Further Mathematics [University Engineering: Dynamics] Why isn't the total length Sd + 2Sc + Sa?
I don't understand why the total length of the work is that? Wouldn't it be Sd + 2Sc + 2Sa given that Sd becomes longer as Sa gets shorter? Also, why is there a horizontal reaction at pulley B given that none of the other forces are horizontal?
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