Answer :
Final answer:
In hair clippers, a lever is used to control the length of the hair being cut by adjusting the distance between the stationary and the cutting blade. This lever operates like a double-lever system seen in scissors, and the Ideal Mechanical Advantage (IMA) is determined through specific calculations dependent on the lengths and width of the handle and blade respectively.
Explanation:
The lever referred to in the context of your question relates to a device used in a hair clipper. The lever controls the distance between the stationary and the cutting blade, ultimately affecting the length of hair being cut. Operating akin to a double-lever system like scissors, the lever has a fulcrum with the length of the handle of the scissors acting as one arm of the lever, and the length of the blade acting as the other.
The Ideal Mechanical Advantage (IMA) for this lever would be calculated as the length of the handle divided by the length of the blade. In terms of the scissors' blades acting as wedges, the IMA would be determined as the length of the blade divided by its width. This mechanism is also seen in devices like a wheelbarrow or a shovel which are similar types of levers.
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