Answer to Question #179017 in Classical Mechanics for Dylan

Question #179017

Once the box is at the forklift it needs to be lifted to a height of 20m. The forklift uses 4300J of energy to lift the 30kg mass. What is the efficiency of the forklift?

Expert's answer

"\\eta=\\frac{E}{E+A},"

"E=mgh,"

"\\eta=\\frac{mgh}{mgh+A}=0.58=58\\%."

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