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Home/ Questions/Q 20722
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Homework Help Staff
Teacher
Asked: 2022-10-27T16:20:05-05:00

What is the linear velocity in MILES PER HOUR of the tip of a lawnmower blade spinning at 2200 revolutions per minute in a lawnmower that cuts a path that is 26 inches wide

What is the linear velocity in MILES PER HOUR of the tip of a lawnmower blade spinning at 2200 revolutions per minute in a lawnmower that cuts a path that is 26 inches wide

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1 Answer

  1. Teacher Community Manager

    Diameter=26″

    So circumference = pi*diameter=81.8614 inches

    2600rev/min=43.333 rev/sec

    So in 1 rev = 1/43.333 sec

    Speed = distance/time = 81.68 ÷ 1/43.333 = 3539.527 inches/sec =
    294.96 ft/sec = 0.055863 miles/sec = 201.1mph.

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