What is the efficiency of a wheel barrow if the Effort needed is 25 lbs on a 4.5 foot handle (from fulcrum) and the Resistance is 30 lbs that is 2.5 feet from the fulcum?

What is the efficiency of a wheel barrow if the Effort needed is 25 lbs on a 4.5 foot handle (from fulcrum) and the Resistance is 30 lbs that is 2.5 feet from the fulcum?

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1 Answer

Efficiency=load/effort=30×2.5/(25×4.5)=2/3 (66.67% approx).
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