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To clean a floor, a janitor pushes on a mop handle with a force of 54.1...

To clean a floor, a janitor pushes on a mop handle with a force of 54.1 N .

If the mop handle is at an angle of 51 ∘ above the horizontal, how much work is required to push the mop 0.67 m ? (Express your answer using two significant figures.)

22.011 J was incorrect .....

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Answer #1

Work, W = F d cos(theta)

W = 54.1 x 0.67 x cos(51) = 22.81 J

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