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8. The gear train system shown has an efficiency of \( 75 \% \). What is the ...
Can you show working?
8. The gear train system shown has an efficiency of \( 75 \% \). What is the mechanical advantage of the system? (A) \( 4.5 \) (B) \( 6.0 \) (C) \( 3.5 \) (D) \( 2.0 \)