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Question

Which class of lever can be a force multiplier or a speed multiplier? Give examples.


A

Class II ; Shears is a force multiplier and Scissors a speed multiplier

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B

Class I ; Shears is a force multiplier and Scissors a speed multiplier

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C

Class III ; Scissors is a force multiplier and Shears a speed multiplier

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D

Class III ; Fire-Tong is a force multiplier and knife a speed multiplier

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E

Class I ; Wheel-Barrow is a force multiplier and Nut-cracker is a speed multiplier

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Solution

The correct option is B

Class I ; Shears is a force multiplier and Scissors a speed multiplier



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